Smog and dust continued to blanket the national capital on Wednesday, as air quality in a number of areas fell to the ‘severe’ category.
In its advisory, the System of Air Quality and Weather Forecasting And Research (SAFAR) instructed people to avoid morning walks and any other outdoor activities.
“Stop any activity level if you experience any unusual coughing, chest discomfort, wheezing, breathing difficulty or fatigue and consult a doctor. If the room has windows, close them. Avoid burning anything such as wood, candles or even incense. Masks known as N-95 or P-100 respirators may only help if you go out. Do not rely on dust masks for protection,” read the statement.
The region’s overall Air Quality Index (AQI) was recorded at 442. Experts have predicted that for the next three days, the air quality will remain in the ‘severe’ category.
An AQI between 0-50 is considered good, 51-100 is satisfactory, 101-200 moderate, 201-300 poor, 301-400 very poor and 401-500 is marked as severe/hazardous.
At Lodhi road, the AQI was 312 at 9:15 am, while in Wazirpur area it dipped to severe category at 403. Furthermore, AQI near Mathura road stood at 425.
Experts have further predicted that the national capital will witness hazy sunshine and patchy clouds with the maximum and minimum temperatures hovering at 32 degrees and 18 degree Celsius, respectively.
Speaking to ANI, Sandeep Kumar, a cyclist, said that he is suffering from breathlessness and the air pollution is posing as an obstruction to his activities. “Each day it is becoming difficult for me to breathe as the air pollution is increasing. We first have to change our habits, only then we can bring changes in the environment,” he added.
Another resident of Delhi, Satwendar Singh, was of the view that each year similar issues crop up in Delhi, but no solution has been found to tackle it. “Though the government takes several steps to reduce air pollution, no solution has been found to improve the air quality. It is getting worse year by year,” he noted.
According to the World Health Organisation (WHO), around 3 million deaths a year are linked to exposure to outdoor air pollution. Indoor air pollution, on the other hand, can be just as deadly. In 2012, an estimated 6.5 million deaths (11.6% of all global deaths) were associated with indoor and outdoor air pollution together.
Nearly 90% of air-pollution-related deaths occur in low and middle-income countries.
“Air pollution continues to take a toll on the health of the most vulnerable populations – women, children, and older adults. For people to be healthy, they must breathe clean air from their first breath to their last,” said Dr. Flavia Bustreo, Assistant Director General at the WHO.
Major sources of air pollution include inefficient modes of transport, household fuel and waste burning, coal-fired power plants, and industrial activities.
However, not all air pollution originates from human activity. For example, air quality can also be influenced by dust storms, particularly in regions close to deserts.
Approach to Save Earth from Deforestation
Forests are being destroyed at an alarming rate. Trees are being sacrificed for making a profit, as the industrialists are pushing through forests in order to gain land for commercial purposes.
As per the surveys conducted by the Food and Agriculture Organization (FAO) of the United Nations, 33 million acres of forestland are lost annually around the globe. The major factors responsible for deforestation include wood and paper products, mining and oil exploitation, urbanization, acid rain, and wildfires. Besides these, supplying wood timber for wood and paper products and clearing land for crops, cattle and housing purposes are some of the other reasons for deforestation.
Deforestation causes serious impact on air and water pollution, soil erosion, climate change, loss of biodiversity. In this scenario, as an individual and being a part of the global community, one can at least plant a tree to combat deforestation. Apart from this, we can also take another step forward to alter our shopping, eating, or even driving habits. This small step can lead to giant leaps towards a global battle against deforestation.
Here are some exceptional ways that you can help in stopping or preventing deforestation.
- Start planting trees around you and promote tree plantation in your neighborhood.
- Go paperless and avoid printing. Whether at work or at home, most people still have the habit of using paper or hardcopy files. Cultivate a habit of using electronic files and folders properly.
- While shopping, shift your preference towards buying recycled products. At home, try to recycle or repurpose waste things as much as possible. By doing this, you will help in knocking down the demand for clearing land.
- Cut down your meat intake and try to eat vegetarian meals instead. This is healthy as well as a best practice as it remains problematic and time-taking to source meat products that are completely devoid of being harvested on land that once was covered with trees. Avoid buying meat products sourced from land where forests have been cleared.
- Stop using firewood to heat up fireplaces. It takes merely a few hours to burn the firewood but it takes several years to grow a tree. Try to change your approach to living your life in such a way that your daily activities cause the least impact on the environment.
- Bring awareness among people to live in a way that doesn’t impact the environment. Try to form a community and let other people know about the alarming rate of deforestation and the control measures to minimize our carbon footprint on the environment.
- Support and encourage companies that manufacture products by causing minimal or no damage to the environment.
Know amazing facts about the world’s second-largest rainforest.
Ground Water Depletion in India: The crisis which is going to surface everywhere
Global warming has been a concern for the dwellers on the earth. Its repercussions are many folded in variegated forms in recent times, especially the depletion of the groundwater level. As India is the second-most populous nation across the globe it shoulders the maximum burnt to his capacity. We as a citizen of India must prepare for the worst and hope for the best to overcome such inconceivable extreme situation.
Groundwater is the water that seeps through rocks and soil and is stored below the ground. The rocks in which groundwater is stored are called aquifers. Aquifers are typically made up of gravel, sand, sandstone or limestone. India accounts for almost one-fourth of the total groundwater extracted globally, more than that of China and the US combined thus using the largest amount of groundwater 24 per cent of the global total, according to sources. Over the past fifty years, the use of groundwater for irrigation has dramatically increased in developing countries like India and China.
Increased groundwater irrigation has enabled higher and more consistent crop yields, which in turn has improved food security and reduced poverty. However, this increase in groundwater use has led to falling water levels and widespread concern about the long-term sustainability of irrigated agriculture.
These concerns are especially dire in India, where groundwater use has increased by 500% over the past fifty years. With 230 billion metre cube of groundwater drawn out each year for irrigating agriculture lands in India, many parts of the country are experiencing rapid depletion of groundwater. The total estimated groundwater depletion in India is in the range of 122–199 billion metre cube. The Indo-Gangetic Plain, north-western, central and western parts of India account for most intensive groundwater-based irrigation. And among these regions, western India and the Indo-Gangetic Plain have more than 90% of the area irrigated using groundwater.
India is an agrarian economy where 58.4% of people depend upon agriculture. The most popular cereals that have been cultivated are rice and wheat. These water-guzzling crops are heavily dependent upon irrigation which why the situation has been becoming alarming down the line. The report said that one kg of wheat and rice required an average 1,654 and2,800 litres of water respectively. So, just for rice, a family of four consumes approximately 84,600 litres of virtual water in a month. According to the report by Water Aid India, In 2014-15, India exported 37.2 lakh tonnes of basmati.
To export this rice, the country used around 10 trillion litres of water, meaning India virtually exported 10 trillion litres of water .it is calling for production of these goods to be made more sustainable and for consumers to be more thoughtful in their purchasing habits.
Lack of access to clean water further pushes the marginalised and vulnerable communities towards an inhuman circle of poverty. The burden of accessing water to meet daily needs prevents them from reaching their full potential by inhibiting their education, health and livelihood opportunities.
There is a dire need to invest in making clean water within the household accessible to everyone, everywhere. India’s success in providing its citizens with access to clean water will significantly impact the success of global goals that the government has committed to.
India’s over-exploitation of groundwater is contributing to—as stated by NITI Aayog—“the worst water crisis in its history”. Groundwater is one of the most important water sources in India accounting for 63% of all irrigation water and over 80% of the rural and urban domestic water supplies. In fact, the United Nations Educational, Scientific and Cultural Organization (UNESCO) World Water Development Report states that India is the largest extractor of groundwater in the world. Fifty-four percent of India’s groundwater wells have declined over the past seven years, and 21 major cities are expected to run out of groundwater by 2020.
Thus, India faces a dual challenge: to regulate the growing demand for groundwater while replenishing its sources.
Research indicates that although MSP has led to assured incomes, it has also led to groundwater depletion, income inequality and unsustainable agriculture. On the supply side, the performance of state governments has not been satisfactory, with the NITI Aayog Composite Water Management Index (CWMI) report stating that the majority of states have scored less than 50% in the source augmentation of groundwater resource index.
Given this scenario, we require policies that promote the judicious use of groundwater. Although there are a number of potential interventions in the area of groundwater conservation, there are hardly any rigorous evaluations. In absence of rigorous research, such as randomized evaluations, which can establish the causal impact of an intervention, it is a challenge to identify solutions that are highly effective.
However, researchers could draw lessons from existing solutions, and use them to design interventions that could later be rigorously evaluated.
One of the proposed ways to reduce groundwater extraction is by reducing electricity subsidies. Subsidies on electricity are thought to play another major role in the Indian groundwater crisis. The vast majority of groundwater pumps are unmetered, and if charged, are billed at a flat, non-volumetric, and highly subsidized tariff. This flat rate is responsible, at least in part, for inefficient usage and excessive withdrawal of groundwater. In addition, the government encourages farmers to produce water-intensive crops like rice and sugarcane through increased minimum support prices (MSP).
An analysis of panel data across 370 districts in India found that a reduction in electricity subsidy was correlated with a decrease in groundwater extraction. On average, a 10% reduction in electricity subsidy generated a 6.7% decrease in groundwater extraction. However, reducing electricity subsidies for farmers could be politically unpopular. One possible way to overcome this challenge is by limiting the electricity subsidy offered to farmers and compensating them with a direct cash transfer for every unit they save. This provides farmers with an incentive to use groundwater judiciously without any additional cost to the government.
Creating sustainable change would require a bottom-up approach by empowering the local community to become active participants in managing groundwater. In line with this, the central government in its 12th five-year plan proposed a policy of participatory groundwater management (PGM), which involves a collaborative approach among government departments, researchers, NGOs and community members. The plan involves training community workers to carry out aquifer mapping and implement innovative ways to use groundwater conservatively with the local community.
The PGM has been implemented in different states, albeit with some variations, such as the Andhra Pradesh Farmer Managed Groundwater Systems (APFAMGS) programme in Andhra Pradesh and Pani Panchayats in Maharashtra.
Advocating for the sustainable management of freshwater resources, World Water Day is celebrated every year on March 22. It was established in the year 1993 to build public awareness and involvement in protecting water resources around the world.
Today, billions of people are still living without safe water – their households, schools, workplaces, farms and factories struggling to survive and thrive. Marginalized groups – women, children, refugees, indigenous peoples, disabled people and many others – are often overlooked, and sometimes face discrimination, as they try to access and manage the safe water they need.’ Safe water’ is shorthand for a ‘safely managed drinking water service’: water that is accessible on the premises, available when needed, and free from contamination.
The theme for World Water Day 2019 is ‘Leaving no one behind’. This is an adaptation of the central promise of the 2030 Agenda for Sustainable Development: as sustainable development progresses, everyone must benefit.
India is currently ranked 120 among 122 countries in the water quality index. In 2015, the Indian government committed to the UN Sustainable Development Goal 6, which promises that by 2030 everyone will have access to clean water, decent sanitation and good hygiene. The human right to water must take priority ahead of other competing demands.
However, there is almost no research study evaluating its impact. While this void is disconcerting, it also presents an opportunity for researchers and policymakers to design and test different interventions ranging from awareness campaigns to training programmes that effectively mobilize and equip the local community to work towards groundwater conservation.
Groundwater has helped India overcome food shortage in the 1960s by playing an instrumental role in ushering in the green revolution. However, the NITI Aayog CWMI report is a timely reminder of the need for policymakers and researchers to come together and conduct rigorous evaluations in order to understand what works and what doesn’t work for groundwater conservation.
No single action whether community-based, legislation, traditional water harvesting systems or reliance on market forces will in itself alleviate the crisis in India. The effective answer to the freshwater crisis is to integrate conservation and development activities – from water extraction to water management – at the local level; making communities aware and involving them fully is, therefore, critical for success.
All this will ultimately pave the way for combining conservation of the environment with the basic needs of people. Unless we take urgent measures to avert this crisis, we may find ourselves faced with an environmental catastrophe of our own making.
Perils of the plastic pollution: alarming time ahead!
Every piece of plastic ever disposed of (this includes the toothbrush your great-grandfather used) is damaging the earth. It’s lying somewhere in the earth, floating in the ocean, or been broken down into micro-particles and in the food chain. Although a fraction of the plastic disposed of is recycled, most of it eventually ends up in the ocean or in dumpsites outside city limits. The best way to reduce plastic pollution is to reduce and phase out its consumption. Solutions range from carrying your own reusable steel glass, box, spoon and cloth bag while eating out or shopping for groceries to using alternatives to plastic for household items.
Plastics are organic polymers of high molecular mass and often contain other substances. They are usually synthetic, mainly derived from petrochemicals. Their low cost, ease of manufacture, versatility, non-corrosiveness, and imperviousness to water, plastics make them useful for multiple purposes at different scales. Further, many chemists, including Nobel laureate Hermann Staudinger (father of polymer chemistry) and Herman Mark (father of polymer physics), have contributed to the materials science of plastics. However, these scientists could not have anticipated such exponential growth of plastic production.
India consumes an estimated 16.5 million tonnes, about 1.6 million trucks full of plastic annually, as per this June 2018 report in Down to Earth that cites data provided by PlastIndia Foundation, a conglomeration of associations and institutions that deal in plastic. Of this, 43% is plastic manufactured for single-use packaging material that will mostly find its way into garbage bins, the report said. In all, 80% of the total plastic produced in India is discarded. It mostly ends up choking landfills, drains, and rivers and flows into the sea where it is ingested by marine animals. It leaches into soil and water, contaminating the natural environment with poisonous dioxins.
National Green Tribunal rapped 25 states and union territories for not following its orders on submitting a plan by April 30, 2019, on how they would comply with the Plastic Waste Management Rules of 2016. The Central Pollution Control Board (CPCB) has pulled up 52 companies — including Amazon, Flipkart, Danone Foods and Beverages and Patanjali Ayurved Limited — for not specifying a timeline or a plan to collect the plastic waste that results from their business activities.
The Ministry of Environment, Forest and Climate Change has notified the Plastic Waste Management (Amendment) Rules 2018. In 2016, the Union government implemented the Plastic Waste Management Rules and Solid Waste Management Rules. But the rules faced various challenges. Based on representations received from various stakeholders, MoEF&CC had constituted a committee to resolve such issues.
At least 40% of the plastic waste generated every day–25,940 tonnes or about 2,594 truckloads, as per this 2015 CPCB study for the year 2011-12–goes uncollected. Thin plastic bags and films do not have enough value in the recycling market–they fetch no more than Rs 4 a kg–to be collected by rag pickers.
There are numerous reasons for Plastic Pollution. The vast network of unlicensed units manufacturing low-grade plastic bags and other material such as Styrofoam and the indifferences of municipal authorities to waste management is certainly the main causes of the pollution. Another important factor which is adding to the injury is India able to recycle only about 4 million tonnes and at the same time before the re-imposition of the plastic waste import ban in March 2019, Indian recycling firms were importing plastic waste from China, Italy, Japan, and Malawi.
Plastic Pollution can have some serious repercussion such as it can upset the food chain as it comes in sizes large and small, polluting plastics even affect the world‘s tiniest organisms such as plankton. When these organisms become poisoned due to plastic ingestion, this causes problems for the larger animals that depend on them for food and water conservation is already a concern in places ranging from California to parts of India, but the world‘s water is in great danger because of leaking plastics and waste. Similarly land is critically polluted when plastic is dumped in landfills; it interacts with water and forms hazardous chemicals. When these chemicals seep underground, they degrade the water quality. The wind carries and deposits plastic from one place to another, increasing the land litter. Recently as we experience the menace of air pollution, burning of plastic in the open air, leads to environmental pollution due to the release of poisonous chemicals. The polluted air when inhaled by humans and animals affect their health and can cause respiratory problems. It also kills animals despite countless TV ads over the years showing ducks or dolphins trapped in six-ring plastic can holders, these items are still used and discarded en masse each day. It is heavily poisonous. Man artificially makes plastic by using a number of toxic chemicals. Therefore, the use of and exposure to plastics has been linked to a number of health concerns affecting people around the world.
India is reckoned to generate over 25,000 tonnes of plastic waste every day. The residues can stain the environment and natural resources for hundreds of years. Plastic toxicity is known for its enduring adverse effects on territorial and aquatic life. In food, it can alter human hormones to cause major life-threatening diseases. Plastic materials, especially bags and bottles strewn on roads, have been noticed to cause flooding by blocking drains. They also kill stray cattle by choking.
Plastics are not totally dispensable as their use seems desirable in certain situations. In fields like agriculture and automobiles, packaging, information technology, and biomedical industries, they are relevant. But their non-degradability and emission of toxic gases on combustion and incineration are growing concerns. It is thus imperative to manage plastic debris appropriately and at the same, It would be advisable to reassess the new set of rules and switch back to the 2016 plastic waste management norms.
Avoid constructions on river banks in hilly areas to stay safe
Amazing Congo Rainforest
Located in central Africa, the world’s second-largest rainforest widely known as The Congo Basin Rainforest covers about 1.5 million square miles. Although a major portion of the Congo Rainforest is in the Democratic Republic of Congo (DRC), substantial areas fall in Gabon, Cameroon, the Republic of Congo, Equatorial Guinea and the Central African Republic.
Common Facts of Congo Rainforest
- The Congo rainforest is considered as one of the most endangered ecosystems in the world.
- The second largest river of the world, The Congo River, runs through the rainforest.
- Though the climate is warm and wet with an average temperature of 25°C, the average rainfall is over 58 inches annually.
- Five of the national parks in the Congo Rainforest are declared as UN World Heritage Sites.
- Pygmies are the group of tribal ethnicities mostly found in Congo Basin. The short stature people with an average height of 4- 4.5 feet survive by foraging and hunting.
Amazing Fauna Facts
- The Congo rainforest is home to approximately 450 species of mammals, 200 types of amphibians, 300 species of reptiles, and over 1,000 species of birds.
- It is the only place on earth where all types of gorillas can be seen. The types include all three subspecies the lowland gorilla, the mountain gorilla, and the eastern lowland gorilla. Bonobos, an endangered great ape, which is considered to be the closest relatives to human beings are found here only.
3. The Congo rainforest is also a habitat for the African forest elephant. The distinguishable characteristics of the African forest elephant are its smaller frame and downward-projecting tusks.
4. Okapi is an African mammal that appears like a crossbreed of a giraffe and a horse. Therefore, it is often called zebra giraffe or forest giraffe. Its brown color body with white striped legs provides the mammal a totally mesmerizing appearance. The animal is found only in the rainforest of the Democratic Republic of Congo (DRC).
5. The black colobus or satanic black colobus is a species of Old World monkey of the genus colobus. These are large in size and covered with black fur with no thumb as in all other colobus monkeys. Owing to hunting and habitat destruction, the black colobus species has encountered large declines in population and was consequently listed as Vulnerable on the IUCN Red List in 1994. These endangered species are found in high canopies of the Congo rainforest.
Congo Rainforest Plant Facts
- The Congo rainforests is also a habitat to over 11,000 species of flora. The vegetation here is so dense that in most of the parts only 1% of the sunlight reaches the ground.
- Many cancer Institutes have identified about 1,400 plants in the rainforest could potentially be used to fight cancer.
- Lianas, which appear like more of vines, are common in the Congo rainforest and can grow up to three thousand feet or 914 meters long.
4. Another common flora found in these rainforests is the teak trees that grow up to 50 meters or 154 feet high. Since teak trees are always in high demand for its wood, it has become the primary reasons for the alarming rate of deforestation in the forest.
These amazing facts help understand why this rainforest is one of the most incredible African landforms.
Be aware of Indoor Air Pollutants
We all have emphasized on air pollution always. However, many of us are not aware of the several gases and organic compounds, which constantly act as pollutants in the air within the house. Constant exposure to such compounds even in minimum quantities can have an unfavorable impact on well-being and health.
Below is the list of few common indoor pollutants –
This is a naturally occurring organic compound found in many domestic products such as particle-board, plywood, building materials, paints, glues, cosmetics, and paper products, etc.
Exposure to formaldehyde causes irritation in eyes, throat, nose, and skin. It also leads to some cancers when exposed to high levels.
The organic compound, Benzene is commonly released in the air from building materials, plywood, furniture, and particle-board. LPG cooking gas also contributes to the levels of Benzene in the air.
Apart from this, photocopying machines or printers in homes as well as in offices also release benzene. Furthermore, smoking inside a home can be a major contributor to benzene in the indoor air. Exposure to this organic pollutant leads to insomnia, dizziness, headaches, and nausea.
Carbon Mono Oxide
The major sources of Carbon mono oxide are gases are cigarette smoke and smoke from vehicles.
It could be one of the worst indoor air pollutants if your house is located near to a busy road with automobiles or you regularly smoke inside the house. Inhaling carbon monoxide regularly can lead to dizziness, fatigue, irregular breathing, headache, nausea, and coughing.
Toluene is another organic compound, released in the air by chemical cleaners, building materials, adhesive products, polishes, and oils, etc.
Exposure to toluene causes eye, nasal and throat irritation. It also causes dizziness, headaches, and feelings of intoxication. It also has neurological impacts that affect short-term memory.
This is an organic compound, which is volatile in nature. The compound is found in adhesives, paints, rust preventers, gasoline, thinners and permanent magic markers.
Exposure to Xylene leads to irritation in the epidermis, eyes, nasal system and throat, breathing disorders and dizziness.
Ammonia is an odorless gas released by construction material. It is also released by human beings while urinating.
Exposure to high levels of ammonia leads to nausea, headaches, burning sensation in eyes, nose, throat, and skin.
Trichloroethylene is also a volatile organic compound released by lubricants, varnishes, adhesives, paint removers, typewriter correction fluid, and chemical cleaners.
Exposure to trichloroethylene impacts the immune and reproductive systems, kidneys, liver, and central nervous system. It may also affect fetal development during pregnancy.
These are the indoor air pollutants, we should be aware of. In order to remove these pollutants from the air, we can keep small indoor potted plants that purify the indoor air and bring significant positive influence on our health.
House of Hiranandani celebrates Independence Day in a unique way
House of Hiranandani, a leading real estate company, celebrated the 73rd Independence Day in a distinct and environment-friendly way. With an aim to avoid any disrespect to the national flag and protect the environment by discouraging the use of plastic flags, the organization distributed over 500 sustainable flags among its employees in Mumbai, Bengaluru, Chennai, and Hyderabad.
These sustainable flags are made of seed paper, a handmade bio-degradable paper that includes plant seeds like Marigold, Poppy, Balsam, Celosia, and Gaillardia. Post celebrations, the bio-degradable paper can be soaked in water and planted in soil to be grown into saplings.
Mr.Mohan Monteiro, Chief Human Resources Officer, House of Hiranandani said, “We often see our national flags lying on the street after the Independence Day celebrations, and they usually take a long time to decompose. These sustainable flags allow us to safeguard the sanctity of one of our nation’s symbols.
Our sensitivity towards the environment encourages us to take up sustainable initiatives that are aimed at creating and preserving the green cover around us. The plantable seeds will enable us to grow more trees. We have already educated our team on planting the seeds and have urged them to take care of the saplings.” he added.
Over 500 sustainable flags distributed among its employees.
Ten things we should do to SAVE EARTH
Today the environment has become a serious concern as the wrath of Mother Nature clearly indicates the consequences of being irresponsible and careless towards the environment for centuries.
Now people have come forward to save the earth by practicing even little things every day that can really help in reducing carbon footprints, greenhouse gases and conserving the environment.
Therefore let’s go green by practicing below ten things.
1. Follow 3R rule.
Reduce, reuse, and recycle are the three things that we need to pay attention to our everyday life. Reducing, reusing or recycling daily household trash can significantly reduce pollution.
Cultivate a habit of throwing household waste in separate garbage-bins per them, so that these waste materials can be reused or recreated. Also, we should use products that come with minimal packaging. This little practice in our day to day life is the first step towards conservation of natural resources and landfill space.
2. Volunteer yourself for cleaning up your society or surroundings.
Avoid throwing any waste on roads or in your surroundings further.
3. Educate people.
Bring awareness among people by educating them on environmental pollution and help them to understand the value and importance of our natural resources.
4. Save water.
Water is the most important natural resource and minimum use of water has become one of the biggest challenges that we are facing nowadays. Statistically, 65 percent of the daily usage of water is used in the bathroom. This can be minimized by taking shorter showers instead of taking a bath. Try not to leave the tap running while brushing your teeth.
5. Go for sustainable eating habits.
Food production is a major reason for the extinction of wildlife. Our eating habits are responsible for almost 60% of global biodiversity loss. Therefore, adopting a plant-based diet instead of a meat-dominated diet can minimize the impact on the environment.
6. Shop mindfully.
Try to buy less plastic products or materials and make a habit of using reusable shopping bags.
7. Save energy.
Usage of long-lasting or energy-efficient light bulbs will minimize greenhouse gas emissions. Also make sure to switch off the lights, fans, coolers or ACs while leaving the room.
8. Plant a tree.
We all know that trees provide food and oxygen. Afforestation helps save energy, clean the air, and help combat climate change. Therefore, try to plant more and more trees in your surroundings.
9. Don’t throw chemicals into the natural water bodies.
Try to use non-toxic chemicals in the home and office.
10. Drive less.
Try to share vehicles or carpool whenever possible. Go for public transports more often or ride a bicycle to work, school, and supermarket. In this way, we can help in reducing emission and it will also help us economically.
If we can practice these simple things every day, it can help in reducing the global consequences and make a big transformation in the long run.
NX 100’s Green Diesel project to reduce environmental pollution by 70%
Titbits of Tropical Cyclone
A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain. Depending on its location and strength, a tropical cyclone is referred to by different names, including hurricane typhoon tropical storm, cyclonic storm, tropical depression, and simply cyclone. A hurricane is a tropical cyclone that occurs in the Atlantic Ocean and the northeastern Pacific Ocean, and a typhoon occurs in the northwestern Pacific Ocean; in the south Pacific or the Indian Ocean, comparable storms are referred to simply as “tropical cyclones” or “severe cyclonic storms”.
“Tropical” refers to the geographical origin of these systems, which form almost exclusively over tropical seas. “Cyclone” refers to their winds moving in a circle, whirling around their central clear eye, with their winds blowing counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. The opposite direction of circulation is due to the Coriolis effect. Tropical cyclones typically form over large bodies of relatively warm water. They derive their energy through the evaporation of water from the ocean surface, which ultimately recondenses into clouds and rain when moist air rises and cools to saturation.
The strong rotating winds of a tropical cyclone are a result of the conservation of angular momentum imparted by the Earth’s rotation as air flows inward toward the axis of rotation. As a result, they rarely form within 5° of the equator.
Tropical cyclones are almost unknown in the South Atlantic due to consistently strong wind shear and a weak Intertropical Convergence Zone. Also, the African easterly jet and areas of atmospheric instability which give rise to cyclones in the Atlantic Ocean and the Caribbean Sea, along with the Asian monsoon and Western Pacific Warm Pool, are features of the Northern Hemisphere and Australia.
Why the east coast of India is more prone to cyclone rather than the west coast?
The Indian subcontinent is one of the worst cyclone-affected areas in the world. Unfortunately, almost 80 percent of the cyclones hit the eastern coast only. The reasons for this difference in hit ratio can be the following:-
(a) Temperature:- BOB(Bay of Bengal) is hotter than the Arabian sea. Hot water temperature is the basic criteria for the development & intensification of cyclones.
(b) Salinity:- Arabian sea has higher salinity than BOB. Its easier to heat & simultaneously evaporate water having lower salinity.
(c) Location:- The typhoons originating in the Pacific ocean too influences the cyclones in BOB, not the case in the Arabian sea.
(d) Movement:- According to IMD cyclones originating in the Arabian sea are believed to move northwest. So they actually move away from the Indian mainland.
- Tropical easterly jet stream shifts its position wrt ITCZ(from east to west) and the tropical cyclones that get embedded in it flow towards the west that is the east coast.
- Warmer coromandel coast due to a comparatively high sea surface temperature of Bay of Bengal that provides an ideal factor of cyclone formation.
- The Bay of Bengal offers a lower vertical wind speed or wind shear which is ideal for a tropical cyclone to be formed.
- Typhoons of S.China sea provide the leftover moisture to Bay Of Bengal adding to favorable conditions.
- East coast, unlike west coast, has no strong mountain range like the Western Ghats to block the cyclonic winds.
Why tropical cyclones hit Odisha frequently?
Because the geographical location of Odisha puts it in the prime path of the retreating Northern East monsoon during October, when the rainy season ends. The northern coasts of Andhra Pradesh, entire Odisha, Eastern Bihar, Southern part of West Bengal most of the times come in the red alert zone when retreating monsoon passes through them. That’s because the Bay of Bengal which is warmer than the Arabian Sea often experiences depression concentrated in Sea due to low pressure.
This is the cyclonic depressions of 2018.
That depression sometimes dissolves and causes heavy rain only. Otherwise, it turns into the severe cyclone and affects Odisha severely on a large scale.
See the path of these tropical cyclones over the years.
Pathway of Super cyclone 1999.
2013 cyclone Phailin pathway.
2014, Hudhud cyclone pathway.
2018, Pathway of the cyclone Titli.
One can easily notice that Odisha is most of the time the first land to be struck by the emerged cyclone. Until it passes to other areas the effects are a little bit dissolved that that of Odisha. So sadly Odisha becomes the most vulnerable state to get affected by the cyclone.
Why do paths of hurricanes, typhoons, and other tropical cyclones recurve?
Generally, tropical cyclones, known variously as a hurricane, typhoons, etc., start out moving west then turn toward the pole of their hemisphere and finally end up moving east. This pattern is called curvature. Here is the worldwide pattern.
From the above display, it is clear that curvature has something to do with the rotation of the Earth. Local wind and temperature conditions and local topography can influence the path and produce erratic elements to the paths but the general pattern has to have a geophysical explanation.
That explanation is that a cyclone has two components of angular momenta. One is with respect to its own spin axis and the other is with respect to the spin axis of the Earth. When a body with angular momenta, such as a gyroscope, is subjected to a torque it processes; i.e., it angular momentum vector rotates. If a body with angular momentum is forced to process then it is subject to a torque. A cyclone rotates with the Earth and its angular momentum vector is kept pointing vertically because of the rising of warm air in its eye (center). The resulting torque forces the cyclone toward the pole in its hemisphere. But as the cyclone moves toward the pole it gets closer to the spin axis of the Earth. The preservation of angular momentum then results in the cyclone moving faster with respect to the pole and hence starts moving east. Its path has thus recurved.
|History of cyclones in Odisha|
|SI.No.||Date/Year||Category of Cyclone||Landfall and loss|
|1.||7-12 October 1737||Super Cyclone||Crossed West Bengal Coast over Sunderbans|
|2.||31 October 1831||Very Severe Cyclonic Storm||Crossed Odisha Coast near Balasore, Loss of life-50,000|
|3.||2-5 October 1864||Very Severe Cyclonic Storm||Crossed West Bengal Coast near Contai|
|4.||1-2 November 1864||Very Severe Cyclonic Storm||Crossed Andhra Pradesh near Machilipatnam|
|5.||22 September 1885||Super Cyclone||Crossed Odisha Coast at False Point, Loss of life- 5000|
|6.||14-16 October 1942||Very Severe Cyclonic Storm||Crossed West Bengal Coast near Contai|
|7.||8-11 October 1967||Very Severe Cyclonic Storm||Crossed Odisha Coast between Puri and Paradeep|
|8.||26-30 October 1971||Very Severe Cyclonic Storm||Crossed Odisha Coast near Paradeep, Loss of life- 10,000|
|9.||14-20 November 1977||Super Cyclone||Crossed Andhra Coast near Nizampatnam|
|10.||4-11 May 1990||Super Cyclone||Crossed Andhra Coast about 40 Km S-W of Machlipatnam|
|11.||5-6 November 1996||Very Severe Cyclonic Storm||Crossed Andhra Coast near Kakinada|
|12.||25-31 October 1999||Super Cyclone||Crossed Odisha Coast near Paradeep at noon of 29 October|
|4 October 2013 – 14 October 2013||Extremely Severe Cyclone Phailin||Crossed Odisha Coast near Gopalpur at around 2130 IST of 13 October|
|14||8 October 2014 – 14 October 2014||Extremely Severe Cyclonic Storm Hudhud||Crossed Vizag coast, Andhra Pradesh at noon on 12 October|
|15||8 October 2018-11 October 2018||Very Severe Cyclonic Storm, Titili||Between 4:30 a.m. and 5:30 a.m. IST on October 11 (23:00–00:00 UTC on October 10–11), Titli made landfall near Palasa, Andhra Pradesh|
What makes cyclone Fani special?
Timing and strength are two factors that make Cyclone Fani different from most other tropical cyclones in this time of the year. Cyclone Fani developed near the Equator and this allowed it to gather massive strength and moisture as it could travel a long distance over the sea.
Cyclone Fani, which has been classified as an extremely severe cyclone (ESC), is the 10th such cyclone to hit India in May in past 52 years. Data from the India Meteorological Department (IMD) show that the last time an extremely severe cyclone hit India in May was in 2004. The other years when such cyclones were witnessed in May are 1968, 1976, 1979, 1982, 1997, 1999 and 2001.
Generally, extremely severe cyclones hit India’s east coast in the post-monsoon season (October-December). IMD data on cyclones that hit India between 1965 and 2017 show that the country has weathered 39 extremely severe cyclones in these 52 years. Of these, nearly 60 percent (23) was between October and December.
The India Meteorological Department (IMD) classifies cyclones on the basis of the maximum sustained surface wind speed (MSW) they generate.
The Cyclones are classified as severe (MSW of 48-63 knots), very severe (MSW of 64-89 knots), extremely severe (MSW of 90-119 knots) and super cyclonic storm (MSW of 120 knots or more). One knot is equal to 1.8 kmph.
Timing and strength are two factors that make Cyclone Fani, pronounced as Foni, different from most other tropical cyclones in this time of the year. Cyclone Fani started developing around April 25 and has made landfall this morning in Odisha on the east coast.
Traversing for nearly 10 days over the sea allowed Fani to gather such strength that it is now classified as an extremely severe cyclone. Generally, tropical cyclones over the Bay of Bengal have a lifespan of four-seven days. But Cyclone Fani is different.
What makes Cyclone Fani special is its trajectory. Fani started developing around the Equator and moved upwards. The long journey allowed it to gather a lot of moisture and momentum, resulting in strong winds.
It has been observed that cyclones/hurricanes/tornados that spend a long time traveling over the sea are generally more powerful than the ones that hit the landmass within a few days.
The reason is that the longer duration at sea allows storms to gather more water and momentum and thus generate stronger winds.
Another aspect that makes Cyclone Fani special is its trajectory. Fani started developing around the Equator and moved upwards (see image below). It thus has had a much longer journey from its starting point to the point where it made landfall than other cyclones that generate in the Bay of Bengal.
Path of Cyclone Fani. It started as a depression very close to the Equator and moved northwards thereafter. (Photo: IMD)
The IMD had first predicted that Cyclone Fani would make a landfall in Tamil Nadu but the forecast was updated as the cyclone altered its course. Had Cyclone Fani made its landfall in Tamil Nadu, it was possible that its strength would have been lower than its present strength because a landfall in Tamil Nadu would have meant that Fani would have covered a shorter distance over the sea.
Most cyclones that generate exclusively in the Bay of Bengal become relatively weaker by the time they reach the Indian landmass. However, the case with Cyclone Fani is different since it developed almost close to the Equator.
The World Meteorological Organisation (WMO), a United Nations body that monitors weather conditions, had said the extremely severe Cyclone Fani will make landfall in Odisha with wind speeds of more than 170 km/h.
However, even after making the landfall, the cyclone will move north-northeastwards and strike West Bengal as a severe cyclone and is expected to hit Bangladesh on May 4 as a cyclonic storm.
This means that besides having covered a long journey over the sea (during which Cyclone Fani collected a massive amount of moisture), the cyclone will also travel considerable distance over the land.
The timing of Cyclone Fani is important because the cyclone started developing in April, a month that has historically seen very few cyclones that were categorized as extremely severe.
Between 1965 and 2017, India was hit by 145 cyclonic storms that were classified as a severe, very severe, extremely severe and super cyclonic storm. Of these, only seven (5 percent) were in April and 27 (18 percent) in May.
Most of these cyclones (90 i.e. 62 percent) were generated between October and December.
Even after making the landfall, the cyclone will move north-northeastwards and strike West Bengal as a severe cyclone and is expected to hit Bangladesh on May 4 as a cyclonic storm.
Madhavan Rajeevan, secretary in the Ministry of Earth Sciences in a tweet said, “In the past (1891-2017) only 14 severe tropical cyclones were formed in April over the Bay of Bengal and only one storm crossed the Indian mainland. Cyclone Fani is the second storm forming in April and crossing the mainland. The last time it happened was Cyclone Nargis that devastated Myanmar in 2008.”
In the past (1891-2017) only 14 severe tropical cyclones formed in APRIL over Bay of Bengal Only one storm crossed the Indian main land. Cyclone FANI the second storm forming in April and crossing the main land. Last severe cyclone NARGIS in 2008 devastated Myanmar
According to the India Meteorological Department, “Out of 10 recorded cases of very heavy loss of life (ranging from about 40,000 to well over 2,00,000) in the world due to tropical cyclones, nine cases were in the Bay of Bengal and the Arabian Sea.”
Five of these were in Bangladesh, three in India and one in Myanmar.
World’s highest recorded storm tide measuring 45 feet occurred in 1876 during the Bakherganj cyclone near Meghna Estuary, Bangladesh.
In fact, IMD says that the world’s highest recorded storm tide measuring 45 feet occurred in this region. It was way back in 1876 during the Bakherganj cyclone near Meghna Estuary, Bangladesh.
The Indian subcontinent is considered to be one of the worst-affected regions by tropical cyclones. The region has witnessed some of the deadliest cyclones in world history.
According to the Nation Cyclone Risk Mitigation Project (NCRMP), the Indian subcontinent is exposed to “nearly 10 percent” of the world’s tropical cyclones. NCRMP’s data analysis shows that between 1980 and 2000, on an average annually 370 million (37,00,000) people were exposed to cyclones in India.
A 2014 report of the World Meteorological Organisation, a United Nations organization on weather monitoring, states that cyclonic storms have been the main cause of deaths due to natural disasters in Asia between 1970 and 2012. A majority of these cyclone-related deaths have occurred in India and Bangladesh.
When it comes to deaths, cyclonic storms were responsible for 76 percent of all deaths caused by natural disasters in Asia in this period. (The report estimates 9.15 lakh deaths were caused due to natural disasters in Asia and 6.95 of them were related to tropical cyclones.)
The top three deadliest disasters in this period were all tropical cyclones. Two of them hit Bangladesh (in 1970 and 1991) and one hit Myanmar (Cyclone Nargis in 2008). The total deaths caused by just these three cyclones was 5,77,232.
Source: World Meteorological Organisation
Of the 10 most severe natural disasters (in terms of deaths) that struck Asia between 1970 and 2012, eight were tropical storms that hit India, Bangladesh, and Myanmar.
In terms of economic loss, Asia suffered a loss of $789.8 billion in these 42 years and 30 percent of it was due to cyclonic storms.
Taking a global picture, the 10 deadliest disasters that hit the world between 1970 and 2012 included three cyclones in Bangladesh and one in Myanmar.
In fact, the 1970 cyclone in Bangladesh caused the greatest number of deaths (3 lakh) in any natural disaster in the world. The Bangladesh cyclone shared the top place with the 1983 drought in Ethiopia that killed the same number of people.
Source: World Meteorological Organisation
Besides this, analysis of the WMO data shows that between 1970 and 2012, 7,77,861 people were killed due to storms (cyclones/hurricanes/tornadoes). However, 89 percent of the deaths (6.95 lakh) were caused in Asia, and primarily in Bangladesh, Myanmar, and India.
How cyclones cause damage?
Cyclones are powerful storms that generate strong windspeeds and have the potential to trigger sudden and heavy rain in the affected areas. There are basically three aspects related to cyclones that have the potential to cause destruction-flooding due to the rising sea, the destruction caused by strong winds and damage due to heavy rains.
Between 1970 and 2012, 7.77 lakh people were killed due to storms cyclones/hurricanes/tornadoes) world over. But, 89% of these deaths (6.95 lakh) were caused in Asia, and primarily in Bangladesh, Myanmar, and India.
When a cyclone is formed over the sea, it generates strong winds along with it. These winds have the potential to generate storm surges. A storm surge is an abnormal rise in the sea level due to a storm (cyclone, hurricane, etc).
A storm surge becomes dangerous because it has the potential to flood low-lying areas along the coast. It can drown humans and animals, destroy infrastructure and damage the environment by eroding beaches, flooding vegetation, among others.
The second dame-causing aspect of cyclones is the strong winds that are generated by the storm. These strong winds that accompany cyclones can uproot trees, electricity poles, shatter houses, etc. This is a common phenomenon in the United States of America which regularly weathers strong hurricanes.
The third aspect with cyclones is their ability to cause sudden, heavy and prolonged rain in the affected areas. This causes floods in rivers, pollutes drinking water and if combined with storm surge, it becomes a double whammy.
The 1999 cyclone in Odisha (then Orissa) killed more than 9,000 people and was one of the worst disasters in recent Indian history.
Unfortunately, all three factors occur at the same time when a cyclone makes landfall. The IMD states that of three factors, it is a storm surge that is most catastrophic and causes widespread destruction. “Past history indicates that loss of life is significant when surge magnitude is three meters or more and catastrophic when five meters and above,” it says. A possible reason for this could be that not much can actually be done against rising sea waves, especially if they are more than 3 meters in height. Storm surge becomes more dangerous if their timing coincides with the timing of high tides.
East coast of India including Odisha is the more susceptible to tropical cyclones during the onset of monsoon in April and May and retreat of monsoon in the month of October and November respectively. As in each year, littoral states are encountering such natural disasters without any answers, it is for the center and state to get geared up with all sort of preparedness and prepare their financial budgets in advance to mitigate the natural calamity in near future.
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