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Subject: Conservation & Mitigation

1. Conservation Progs.
2. Worldwide initiatives
3. Mitigation Strategies
4. Conventions and Protocols

  • Etalin Hydro Electric Project

    A group of conservationists has written to the Environment Ministry seeking rejection of the approved Etalin Hydro Electric Project in the Dibang Valley district of Arunachal Pradesh.

    Make a note of major dams in India along with the rivers, terrain, major Wildlife sanctuaries and national parks incident to these rivers.

    Etalin Hydro Electric Project

    • Etalin HEP is a 3097 MW project based on the river Dibang.
    • It is envisaged as a run of the river scheme on rivers Dri and Tangon in the Dibang Valley District of Arunachal Pradesh.
    • Dibang is a tributary of the Brahmaputra River which flows through the states of Arunachal Pradesh and Assam.
    • The project is being executed through the Etalin Hydro Electric Power Company Limited, a JV company of Jindal Power Limited and Hydro Power Development Corporation of Arunachal Pradesh Limited.
    • It is expected to be one of the biggest hydropower projects in India in terms of installed capacity.

    Issues with the Project

    • The Project falls under the richest bio-geographical province of the Himalayan zone and would be located at the junction of major biogeographic zones like Palaearctic Zone and Indo-Malayan Zone.
    • It would involve the clearing of 2.7 lakh trees in “subtropical evergreen broad-leaved forest and subtropical rain forests”.
    • Underscoring the inadequacy of the Environment Impact Assessment report on Etalin, the conservationists said observations by wildlife officials were ignored.
    • These include the threat to 25 globally endangered mammal and bird species in the area to be affected.

    Back2Basics: Biogeographic Zones

    • A biogeographic realm or ecozone is the broadest biogeographic division of Earth’s land surface, based on distributional patterns of terrestrial organisms.
    • These zones delineate the large areas of the Earth’s surface within which organisms have been evolving in relative isolation over long periods of time.
    • They are separated from one another by geographic features, such as oceans, broad deserts, or high mountain ranges that constitute barriers to migration.
    • Originally, six biogeographic regions were identified: Palearctic (Europe and Asia), Nearctic (North America), Neotropical (Mexico, Central and South America), Ethiopian/Afrotropic (Africa), Oriental/Indo-Malayan (Southeast Asia, Indonesia) and Australian (Australia and New Guinea).
    • Currently, eight are recognised since the addition of Oceania (Polynesia, Fiji and Micronesia) and Antarctica.

  • Species in news: 40 Gharials released into Ghaghara River in UP

    Forty gharials (Gavialis gangeticus) were released in the Ghaghara River by the Bahraich forest division of Uttar Pradesh.

    This year, we have seen many news focusing on species reintroduction into the wild. Can you recall them?? If not, Click Here.

    And one may often get confused between the Mugger, Gharial and the Saltwater Crocodile. Note the differences about their IUCN status, habitat (freshwater/saltwater) etc..

    Gharials

    • The Gharial is a fish-eating crocodile is native to the Indian subcontinent. They are a crucial indicator of clean river water.
    • Small released populations are present and increasing in the rivers of the National Chambal Sanctuary, Katarniaghat Wildlife Sanctuary, Son River Sanctuary.
    • It is also found at the rainforest biome of Mahanadi in Satkosia Gorge Sanctuary, Orissa.
    • Gharials are ‘Critically Endangered’ in the IUCN Red List of Species.
    • The species is also listed under Schedule I of the Wild Life (Protection) Act, 1972.

    Into the wild

    • A major chunk of gharials in India is found in the Chambal River, which has about 1,000 adults.
    • The Ghaghara acts as an important aquatic corridor for gharials in Uttar Pradesh. The river is a major left-bank tributary of the Ganges.
    • About 250 gharials have been released in the Ghaghara since 2014.
    • However, there are satellite populations of less than 100 adults in the Girwa River (Katarniaghat Wildlife Sanctuary in Uttar Pradesh, the Ramganga River in Jim Corbett National Park and the Son River).
    • Like Uttar Pradesh, Bihar too is releasing gharials in the Valmiki Tiger Reserve as part of restocking the wild population. Unlike crocodiles, gharials do not pose any danger to humans.

    Back2Basics

    Mugger

    • The mugger is a marsh crocodile which is found throughout the Indian subcontinent.
    • It is a freshwater species and found in lakes, rivers and marshes.
    • IUCN Status: Vulnerable

    Saltwater Crocodile

    • It is the largest of all living reptiles.
    • It is found along the eastern coast of India.
    • IUCN Status: Least Concerned

  • Global Forest Resources Assessment, 2020

    The deforestation rate globally declined between 2015 and 2020, according to the Global Forest Resources Assessment, 2020. This decline is a result of sustainable management measures worldwide.

    Possible prelim question:

    Q. The Global Forest Resources Assessment Report recently seen in news is published by-

    a) UN-FAO

    b) UN Forum on Forests

    c) International Union of Forest Research Organizations

    d) None of these

    Global Forest Resources Assessment

    • The Global Forest Resources Assessment (FRA) reports on the status and trends of the world’s forest resources.
    • It is led by the Forestry Department of the Food and Agriculture Organization of the United Nations.
    • The FRA reports the extent of the world’s forest area as well as other variables, including land tenure and access rights, sustainable forest management (SFM), legal and institutional frameworks for forest conservation, and sustainable use.

    Click here for amazing visuals of the FRA

    Highlights of the 2020 report

    • The rate of forest loss in 2015-2020 declined to an estimated 10 million hectares (mha), down from 12 million hectares (mha) in 2010-2015, according to the FRA 2020.
    • The FRA 2020 has examined the status of, and trends in, more than 60 forest-related variables in 236 countries and territories in the period 1990–2020.
    • The world lost 178 mha of forest since 1990, an area the size of Libya, according to the report.
    • However, the rate of net forest loss decreased substantially during 1990–2020 due to a reduction in deforestation in some countries, plus increases in the forest area in others through afforestation.
    • The largest proportion of the world’s forests were tropical (45 per cent), followed by boreal, temperate and subtropical.

    Data on losses and gains

    • The world’s total forest area was 4.06 billion hectares (bha), which was 31 per cent of the total land area. This area was equivalent to 0.52 ha per person.
    • Among the world’s regions, Africa had the largest annual rate of net forest loss in 2010–2020, at 3.9 mha, followed by South America, at 2.6 mha.
    • On the other hand, Asia had the highest net gain of forest area in 2010–2020, followed by Oceania and Europe.
    • However, both Europe and Asia recorded substantially lower rates of the net gain in 2010–2020 than in 2000–2010.
    • Oceania experienced net losses of forest area in the decades 1990–2000 and 2000–2010.
    • More than 54 per cent of the world’s forests were in only five countries — the Russian Federation, Brazil, Canada, the United States of America and China.
    • The highest per cent of plantation forests were in South America while the lowest was in Europe.

  • What is Urban Ozone?

    A Manchester (UK) based research has found that the nationwide lockdown may be leading to the generation of a dangerous pollutant, urban ozone.

    The Ozone is formed due to different factors in the Troposphere and the Stratosphere (where the ozone acts as a protective layer). Note these differences from prelims perspective.

    Urban Ozone

    • The photochemical production of ozone may become more important in urban areas during summertime in these low conditions of oxides of nitrogen.
    • As nitrogen oxides reduce, photochemical production may become more efficient and can lead to higher ozone concentrations in the summertime.
    • The higher summer temperatures increase emissions of biogenic hydrocarbon from natural sources such as trees. These biogenic hydrocarbons significantly affect urban ozone levels.
    • While ozone is important for screening harmful solar UV radiation when present higher up in the atmosphere, it can be a danger at the Earth’s surface and can react to destroy or alter many biological molecules.

    Back2Basics: Ozone Gas

    • It is a gas that occurs both in the Earth’s upper atmosphere and at ground level.
    • Ozone occurs in two layers of the atmosphere. The layer closest to the Earth’s surface is the troposphere.
    • Here, ground-level or “bad” ozone is an air pollutant that is harmful to breathe and it damages crops, trees and other vegetation. It is the main ingredient of urban smog.
    • The stratospheric or “good” ozone protects life on Earth from the sun’s harmful ultraviolet (UV) rays.

    Formation of Ozone

    • Ozone is produced naturally in the stratosphere when highly energetic solar radiation strikes molecules of oxygen, and cause the two oxygen atoms to split apart in a process called photolysis. If a freed atom collides with another O2, it joins up, forming ozone.
    • The majority of tropospheric ozone formation occurs when nitrogen oxides (NOx), carbon monoxide (CO) and volatile organic compounds (VOCs), react in the atmosphere in the presence of sunlight, specifically the UV spectrum.

  • Mass Hatching of Olive Ridley Turtles begins

    Mass hatching of Olive Ridley turtles began at Odisha’s Rushikulya rookery, a major nesting site of these marine turtles.

    Mass hatching of Olive Ridley turtles is a very celebrated news every year. Also make sure to look at the Rivers system in the region from the map above.

    Olive Ridley Turtles

    • The Olive Ridley Sea Turtle (Lepidochelys olivacea), also known as the Pacific ridley sea turtle, is a medium-sized species of sea turtle found in warm and tropical waters, primarily in the Pacific and Indian Oceans.
    • In the Indian Ocean, the majority of olive ridleys nest in two or three large groups at Rushikulya rookery near Gahirmatha in Odisha.
    • The coast of Odisha in India is the largest mass nesting site for the olive ridley, followed by the coasts of Mexico and Costa Rica.
    • The species is listed as Vulnerable in the IUCN Red List, Appendix 1 in CITES, and Schedule 1 in Wildlife Protection Act, 1972.

    Special feature: Mass nesting

    • They are best known for their behaviour of synchronized nesting in mass numbers, termed Arribadas.
    • Interestingly, females return to the very same beach from where they first hatched, to lay their eggs.
    • They lay their eggs in conical nests about one and a half feet deep which they laboriously dig with their hind flippers.
    • They hatch in 45 to 60 days, depending on the temperature of the sand and atmosphere during the incubation period.

  • The evergreen debate of Food versus Fuel

    The article discusses the recent decision of the government to make alcohol from rice. The move was bound to trigger the debate over food security of the country with a population ravaged by hunger and poverty. While the 2009 biofuel policy had stressed the use of non-food resources, the 2018 updated policy allowed using excess grains. We all want to make a shift towards a green economy but is this the right time? Let’s find out.

    What decisions did the government take?

    • The National Biofuel Coordination Committee (NBCC) chaired by the Union Minister of Petroleum and Natural Gas decided to use “surplus” rice available with the Food Corporation of India (FCI) for conversion to ethanol.
    • The objective is to make alcohol-based hand-sanitisers and for the blending of ethanol with petrol. 
    • This decision is not only audacious but also an affront to the millions of people who are deeply affected by food insecurity.

    The food question

    • In 2009, the National Policy on Biofuels stressed on the use of non-food resources to avoid a possible conflict between food and fuel.

    • Take the US’s example: In 2018-19, an astounding 37.6 per cent of the corn produced in the US is used for making ethanol.

    • In addition to cereals, oilseed crops like rapeseed, soybean and sunflower were used for biofuel production.
    • Rise in food prices: Such diversion of food crops to produce biofuel was considered one of the reasons for the rise in food prices globally.

    What should be India’s strategy in this debate?

    • There is rampant poverty, hunger, and malnutrition in India.
    • India’s position in the Global Hunger Index has slipped nine places, ranking 102 among the 117 countries in 2019.
    • The National Family Health Survey (NFHS-4) 2015-16, found that 38.4 per cent of children under five years are “stunted” (height for age) and 21 per cent are “wasted” (low weight for height).
    • In fact, over a period of 10 years, wasting has increased from 19.8 per cent in NFHS-3 to 21 per cent in NFHS-4.

    The dictums of 2018 Policy

    • The 2018 National Policy on Biofuels had a target of 20 per cent blending of ethanol in petrol and 5 per cent blending of biodiesel in diesel by 2030.
    • This was to be achieved by increasing production using second-generation bio-refineries and developing new feedstock for biofuels.
    • It allowed the production of ethanol from damaged food grains like wheat and broken rice, which are unfit for human consumption.
    • The new policy allowed the use of excess food grain for ethanol in a bounty crop year, if endorsed by the Union Ministry of Agriculture.

    Possible dangers

    • The quantity of rice from which ethanol will be produced has not been announced, nor do we know the price at which such rice will be sold by the FCI.
    • About 85 per cent of rice is Kharif crop, heavily dependent on monsoon.
    • Despite the prediction of a normal monsoon, What happens if the monsoon predictions go wrong? Will we be able to import grain?
    • Less damaged grains: Despite the commonly held belief of a lakh of tonnes of rotting grains, the FCI’s storage practices are actually quite good.
    • Damaged grains as a percentage of total quantity issued by the FCI has been just about 0.01 per cent to 0.04 per cent in the last five years.
    • Hardly any ethanol can be made from such a small amount of damaged grains.
    • Making ethanol from sound quality grains deprives food to humans as well as livestock.
    • At the time when uncertainties are looming large, it is imperative that food security and food price stability be given the highest priority.

    Way forward

    • Ethanol can be produced from other ingredients such as B and C heavy molasses, sugar, sugar syrup, and sugarcane juice.
    • Ethanol has also been blessed with a low GST and enjoys relaxed conditions for inter-state movement if used for blending with petrol.
    • Since the economy faces a bleak prospect due to the impact of COVID-19, the government should first use the food grains to meet the requirement of about 10 to 20 crore people without ration cards.

    The UPSC could ask a question on the following lines “Diverting food grains for making fuels has always been a contentious issue from the food security angle. At the same time reducing India’s dependence on import for fuels is as much a serious concern. The National Policy on Biofuels-2018 sought to strike the balance between the two. Critically analyse the various provisions of National Policy on Biofuels-2018 which were different from 2009 policy.”

    Conclusion

    The government must ensure the food safety of the country first and if it still has surplus rice, it must facilitate export to friendly countries which are suffering an adverse impact of COVID-19 on their economies.

    Back2Basics: Generations of biofuels

    • There are three types of biofuels: 1st, 2nd and 3rd generation biofuels.
    • They are characterized by their sources of biomass, their limitations as a renewable source of energy, and their technological progress.
    • The main drawback of 1st generation biofuels is that they come from biomass that is also a food source.
    • This presents a problem when there is not enough food to feed everyone.
    • 2nd generation biofuels come from non-food biomass, but still compete with food production for land use.
    • Finally, 3rd generation biofuels present the best possibility for alternative fuel because they don’t compete with food.
    • However, there are still some challenges in making them economically feasible.

    Important Provision of ‘National Policy on Biofuels, 2018

    • The government aims at increasing the utilization of biofuels in the energy and transportation sectors of the country by promoting the production of biofuels from domestic feedstock in the coming decade through this policy.
    • Larger goals such as the adoption of green fuels, national energy security, fighting climate change, generating employment, etc. would be facilitated through this policy. Along with that, technological advancements in the field of biofuels will also be encouraged.
    • MNRE has set an indicative target of 20% blending of ethanol in petrol and 5% blending of biodiesel in diesel to be achieved by 2030.
    • The percentage of the same currently stands at around 2% for petrol and less than 0.1% for diesel.

  • Back in news: International Whaling Commission (IWC)

    Iceland will not be hunting any whales in 2020. Iceland, alongside Norway and Japan, has frequently broken the International Whaling Commission’s 1986 worldwide moratorium, which indefinitely “paused” commercial whaling.

    Regarding IWC, we can expect a statement based prelim question asking-

    1) If IWC has a UN or any other parent organization

    2) If India is a member/observer etc.

    About International Whaling Commission (IWC)

    • The IWC is an Inter-Governmental Organisation set up by the terms of the International Convention for the Regulation of Whaling (ICRW) signed in Washington, D.C in 1946.
    • It aims to provide for the proper conservation of whale stocks and thus make possible the orderly development of the whaling industry.
    • The main duty of the IWC is to keep under review and revise as necessary the measures laid down in the Schedule to the Convention which governs the conduct of whaling throughout the world.
    • The body is the first piece of International Environmental Legislation established in 1946.
    • Commercial whaling was banned by the IWC in 1986 after some species were almost driven to extinction.
    • 89 countries have the membership of in IWC and all the member countries are signatories to this convention.
    • India is a member state of the IWC.

    Earlier reference

    • Japan has last year withdrawn from the IWC citing domestic reasons.
    • Thus, it resumed commercial whaling after 31 years, meeting a long-cherished goal of its traditionalists.

  • [pib] Sariska Tiger reserve

     

    The Ministry of Tourism’s Dekho Apna Desh webinar featured a presentation and virtual tour of ‘Destination- Sariska Tiger reserve’.

    Tourism and tourist sites carry high stakes for possible prelims questions.  Take time to quickly revise the Swadesh Darshan , PRASHAD Schemes.   Click here for the repository of all such initiatives.

    Sariska Tiger Reserve

    • It is located in the Aravalli Hills, 35 km from Alwar, 250 km SW of Delhi and 110 km NE of Jaipur.
    • The former hunting reserve of the Maharaja of Alwar, the Sariska valley is home to a variety of flora and fauna.
    • The park has populations of tigers, leopards, Nilgai, Sambar, chital etc.
    • The place is a paradise for bird lovers as it shelters a large population of Indian peafowl, crested serpent eagles, sand grouse, golden-backed woodpeckers, great Indian horned owls, tree pies, vultures and many others.
    • It is the first reserve in the world with successfully relocated tigers. It is an important biodiversity area in the Northern Aravalli leopard and wildlife corridor.

    Features of this episode

    • Alwar is a city dotted with heritage buildings, Forts, tombs and palaces. Some of the important sights not to be missed are Bala Qila, Vijai Mandir Lake Palaces, Fateh Jung ki Gumbad, Moti Doongri etc.
    • The sanctuary is strewn with ruins of ancient temples dating back to the 10th and 11th centuries.
    • Some of the highlights are the ruins of the Kankwari Fort and the 10th-century Neelkanth temples, which have Khajuraho-like carvings as key features.
    • Neelkanth Mahadeva houses the ruins of over 300 Hindu and Jain temples constructed between the 8th and 12th Centuries.
    • Chand Baoli (stepwell) at Abhaneri is enormous with 3500 steep steps built by the Nikhumbha dynasty is one of the largest step-wells in the world.

    About DekhoApnaDesh

    • Under this, a series of webinars will showcase the diverse and remarkable history and culture of India through a documentary series on various cities.
    • It will be including various monuments, cuisine, arts, dance forms, natural landscapes, festivals and many other aspects of the rich Indian civilization.
    • The objective of the webinar series is to create awareness about and promote various tourism destinations of India – including the lesser-known destinations and lesser-known facets of popular destinations.
    • The webinar will be available in the public domain through the Ministry’s social media handles- “Incredible India” on Instagram and Facebook.

    Back2Basics: Project Tiger

    • Project Tiger is a tiger conservation programme launched in April 1973 by during PM Indira Gandhi’s tenure.
    • It is administered by the National Tiger Conservation Authority.
    • The project aims at ensuring a viable population of Bengal tigers in their natural habitats, protecting them from extinction, and preserving areas of biological importance as a natural heritage forever represented as close as possible the diversity of ecosystems across the distribution of tigers in the country.
    • The project’s task force visualized these tiger reserves as breeding nuclei, from which surplus animals would migrate to adjacent forests.
    • The government has set up a Tiger Protection Force to combat poachers and funded relocation of villagers to minimize human-tiger conflicts.

  • Ganga water improves during lockdown

    The Ganga water quality has improved remarkably during the lockdown period. This highlights the importance of synergy for absolute symbiosis between nature and man as the need of the hour.

    Context

    • The novel coronavirus lockdown (COVID-19) pandemic has put millions in the throes of adversity — and yet, there is a reason to celebrate.
    • Over a month into the nationwide lockdown, air and water pollution levels have shrunk and the wildlife is free.
    • Of 36 monitoring units placed in the Ganga, water quality at 27 points was found suitable for bathing and propagation of wildlife and fisheries in the lockdown period

    Status of rivers in India

    • India’s water bodies are in a poor state. The rivers are becoming dumpyard for untreated sewage and industrial waste.
    • In the name of economic growth, most rivers and streams have been turned into sewer canals and are getting difficult to be treated.
    • It is estimated that every day, almost 40 million litres of wastewater enters rivers and other water bodies; only 37 per cent is adequately treated.
    • A Centre Pollution Control Board (CPCB) report showed that critically polluted river stretches in the country have increased from 302 stretches in 2016 to 351 stretches in 2018.
    • The finding was based on Biological Oxygen Demand (BOD).

    Ganga

    • According to CPCB, more than half of wastewater treatment plants in the basin do not comply with the discharge norms.
    • Since 1985, several programmes and schemes have been launched to clean the Ganga. It began with the Ganga Action Plan I, followed by Ganga Action Plan II.

    • In 2015, the biggest-ever initiative, Namami Gange was launched with a budget of over Rs 20,000.
    • Despite numerous programmes and huge funds, the Ganga still runs polluted.

    The causes

    • More than 80 per cent of pollution in the Ganga is due to domestic sewage from surrounding towns and villages. The rest is contributed by industrial waste.
    • During the lockdown, domestic sewage would have increased owing to increased demand for water to maintain hand-washing hygiene. Industrial waste, however, stopped entering the Ganga.
    • Other activities such as tourism, fairs, bathing and cloth washing near the ghats were curtailed. Experts said these observations reflected that domestic sewerage was not the only cause of concern.
    • When sewage is mixed with industrial effluents, it gets difficult for the river to assimilate pollution.
    • One more reason was high number of western disturbances which brought rain and improved the flow in the river leading to dilution.

    COVID-19’s gift to Ganga

    • After the nationwide lockdown was imposed, within 10 days signs of improvement in water quality started surfacing.
    • At Varanasi’s Nagwa Nala, the Dissolved Oxygen (DO) values were found increased to 6.8 milligram/litre against 3.8 mg/l on March 6, showcasing an extraordinary improvement of 79 per cent in DO values.
    • 30 per cent of the total BOD load was due to industries along the river, which amounted to 130-150 tons per day.
    • Since all major polluting industries are closed, the toxic load is off the river.

    Surprisingly better

    • Ganga water at Haridwar and Rishikesh was reported fit for drinking due to 500 per cent decrease in sewage and industrial effluents.
    • A dip in the number of visitors at ghats in Haridwar also helped the river water quality.
    • The Ganga water has become fit for ‘achaman’, which means ritual sipping, after a long time.

    Bringing the ambitions to reality

    There is an urgent need to:

    • Reinvestigate the main source of pollution in Ganga and reorient all river cleaning policies and programmes based on lockdown findings.
    • Industries need to strictly adhere to discharge norms accompanied with strong enforcement of laws and regulations vis-a-vis strong monitoring and vigilance framework.
    • Setting up of effective interventions to clean rivers, reliable, representative and comprehensive data collected at high frequency in a disaggregated manner.
    • There is an urgent need to expand the network of monitoring stations on the Ganga, the Yamuna and tributaries of Ganga in more places.
    • Over-extraction and over-exploitation of Ganga’s waters have rendered long stretches of the river completely dry for much of the year. There is a need to maintain ecological flow to keep it clean for longer run.
    • Education and awareness needs to be carried out strategically.

    Back2Basics: Biochemical Oxygen Demand

    • BOD is the amount of dissolved oxygen needed (i.e. demanded) by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period.
    • The BOD value is most commonly expressed in milligrams of oxygen consumed per litre of sample during 5 days of incubation at 20 °C and is often used as a surrogate of the degree of organic pollution of water.
    • BOD is similar in function to chemical oxygen demand (COD), in that both measure the amount of organic compounds in water.
    • However, COD is less specific, since it measures everything that can be chemically oxidized, rather than just levels of biodegradable organic matter.

  • Earth Day 2020 and its significance

    Yesterday, April 22nd was celebrated as Earth Day, an international event celebrated around the world to pledge support for environmental protection.

    The Earth Day designation by UN and its first observance have confusing difference. Make note of that. We can expect a question based on that. Also read about Earth Overshoot Day.

    What is Earth Day?

    • In 2009, the United Nations designated April 22 as ‘International Mother Earth Day’.
    • Earth Day aims to “build the world’s largest environmental movement to drive transformative change for people and the planet.”
    • Earth Day was first observed in 1970, when 20 million took to the streets to protest against environmental degradation.
    • The event was triggered by the 1969 Santa Barbara oil spill, as well as other issues such as smog and polluted rivers.
    • The landmark Paris Agreement, which brings almost 200 countries together in setting a common target to reduce global greenhouse emissions, was signed on Earth Day 2016.

    Significance of this year

    • The year 2020 marks the 50th anniversary of the annual celebrations.
    • This year’s theme for Earth Day is ‘climate action’.