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Subject: Environment

  • Mystery illness in Eluru

    Over 550 people in Eluru town of Andhra Pradesh’s West Godavari district have been suffering from convulsions, seizures, dizziness and nausea.

    Try this PYQ:

    Q.Which of the following can be found as pollutants in the drinking water in some parts of India?

    1. Arsenic
    2. Sorbitol
    3. Fluoride
    4. Formaldehyde
    5. Uranium

    Select the correct answer using the codes given below:

    (a) 1 and 3 only

    (b) 2, 4 and 5 only

    (c) 1, 3 and 5 only

    (d) 1, 2, 3, 4 and 5

    Eluru illness

    • The All India Institute of Medical Sciences (AIIMS) has found traces of lead and nickel in blood samples of 25 victims out of the 45 samples sent by the state government.
    • The primary suspicion is on water contamination by heavy metals. Scientists suspect that pesticide or insecticide has seeped into drinking water sources.
    • Experts from Hyderabad who collected water, blood, and food samples say there are indications of lead contamination but can confirm this only after detailed test reports.

    Possible cause: Water contamination

    • Eluru receives water through canals from both Godavari and Krishna rivers.
    • The canals pass through agricultural fields where runoff laced with pesticides mixes with water in the canals. Many aspects of the mystery illness have baffled scientists.
    • People who only use packaged drinking water have also fallen sick.

  • A History of Climate Change Negotiations

    China’s announcement of achieving net-zero by 2060 is a stepping stone in the fight against climate change. But it means nothing until countries share the goals they intend to follow.

    Why are we reading this news?

    We often get to hear that UPSC suddenly switches to basics after maneuvering over current affairs. This news is a perfect example which strikes the balance between basics and current affairs.

    Climate change: A disaster in making

    • Anthropogenic climate change can be traced back to the industrial revolution.
    • The atmospheric concentration of carbon dioxide equivalent (CO2e) greenhouse gas has increased to 415 parts per million (ppm) from 280 ppm since then.
    • A global momentum, therefore, was required to get all countries on board.

    Realization of climate action: Birth of UNFCCC

    • The idea led to the formation of the United Nations Framework for Climate Change Convention (UNFCCC, also known as ‘The Convention’) in 1992, at the Earth Summit in Rio de Janeiro.
    • The convention divided the countries on the basis of their differing commitments: Annex I and II consisted of industrialized and developed countries and Non-Annex I comprised developing countries.

    Wait! You need not remember everything* in this newscard. But, have walk through the timeline; it will concretize your idea about the global climate action and the possible way forward.

    A timeline

    The Conference of Parties (CoP) is the supreme decision-making body at the convention and comprises states that are party to it.

    COP 1:

    • At CoP1 in Berlin 1995, the Convention highlighted the shortcomings of UNFCCC — the voluntary nature of the agreement.
    • It stressed how no substantive action was taken to address the cause against climate change, which in turn put forward the need for “legally binding” actions.

    COP 2:

    The proposal of legally binding targets was further emphasised upon in COP2 in Geneva in 1996.

    COP 3:

    • In COP3 in Kyoto in 1997, the legally binding targets were approved of by different countries. They came to be known as the Kyoto Protocol.
    • It is considered to be one of the most important steps despite its late acceptance for it paved the way for further negotiations through legally binding targets for Annex I countries and establishment of carbon markets.
    • The mechanisms proposed by Kyoto Protocol to reduce emissions included Joint Implementation, Clean Development Mechanisms (CDM) and Emissions Trading.

    COP 4 and COP 5:

    In COP4 in 1998 and COP5 in 1999, the rulebook for implementing the Kyoto Protocol was on the process with the adoption of the Buenos Aires Plan of Action in COP4, along with continued negotiation efforts in COP5.

    COP 7:

    • In COP7 in Marrakesh in 2001, the guidelines for flexible mechanisms of joint implementation, CDM markets, emissions trading was agreed upon. It came to be known as the Marrakesh Accord.
    • It was particularly important because mitigation efforts had already started and special attention was given to developing countries.
    • It asked them to build their capacities and ensuring technology transfer through least developed countries (LDC) Fund, special climate change fund (SCCF) and adaptation fund.

    COP 8:

    The COP8 in 2002, which was held in “New Delhi”, emphasised on adaptation measures and stressed that poverty alleviation and development were the utmost priority of developing countries.

    COP 10:

    • The future course of action was discussed in COP10 in Montreal in 2005 after Russia ratified the Protocol in 2004 at COP10 in Argentina.
    • A two-track approach was formed, which included the constructive implementation of UNFCCC as well as formation an ad-hoc committee for the Kyoto Protocol.

    COP 15:

    • Copenhagen COP 2009 was set by the ad-hoc working group on Kyoto protocol formed during Montreal COP 2005.
    • The group agreed to have a deal in 2009 regarding a legally binding climate regime from 2012-2020.
    • The discussions lost track when developed countries started advocating for burden-sharing with developing countries.

    COP 16:

    • The disappointment of Copenhagen was turned into an opportunity in Cancun 2010, where the Copenhagen Accord was accepted.
    • It looked forward to a second commitment period for the Kyoto Protocol and established the Cancun Adaptation Framework.
    • For the first time, a temperature target of 2 degrees Celsius was included. The Green climate fund was formed and developed countries agreed to contribute.

    COP 17:

    • Following Cancun, Durban COP 2011 took place wherein the seed of the Paris Agreement was sown.
    • The seed started sprouting in Doha COP 2012, where countries decided to avoid the gap between Kyoto and next legal climate regime.
    • So, the second regime of Kyoto was decided from 2012-2020. The third pillar of loss and damage was incorporated for the first time.

    COP 20:

    In COP in Lima in 2014, countries submitted their own climate ambitions in the form of intended nationally determined contributions (INDCs).

    COP 21: The Pathbreaker

    • In 2015, the Paris agreement was finally adopted and the INDCs were annexed to it.
    • It was agreed that the Paris agreement would start from 2021.
    • 2015 was known as a year of multilateral agreements because, in addition to the Paris agreement, sustainable development goals and Sendai Framework was also adopted.
    • 2015, therefore, came out to be a successful year.

    Post Paris Agreement

    • The retreat of developed countries: In all these post-2020 talks, developed countries tactfully avoided their pre-2020 commitments by not ratifying the Kyoto protocol.
    • Post-Paris discussions for the finalization of the Rulebook began.
    • Most were finalised in 2018, except the market mechanism and measurement, reporting and verification (MRV) of greenhouse gas which are due in COP26 in 2021.

    Agenda for next COP in 2021

    • The next COP will be in 2021 in Glasgow with two sets of agendas for discussion.
    • The first will be to complete the rule-book of Paris Agreement implementation, whose two aspects regarding Sustainable Development Mechanism (SDM) architecture and MRV framework are yet to be completed.
    • The second will be to ensure smooth implementation of the Paris Agreement from 1st January 2021.
    • Countries are expected to revise their NDCs as the present course of activities is projected to cause an increase in temperature of 2.8-3 C rise.

    The situation today: Nothing beyong big promises

    • China’s recent announcement of achieving net-zero by 2060 comes across as the stepping stone of future climate change mitigation efforts.
    • Political announcements, however, mean nothing until countries actually share the goals they intend to follow.
    • On the contrary, India is the only country whose NDCs are in line with the 2 degrees Celsius target.
    • Another substantial happening in the domain of climate change includes Joe Biden’s promise of joining the Paris Agreement; it would bring the US back to the GCF fund.

  • Places in news: ‘Mini Kaziranga’

    Too many cattle are robbing the one-horned rhinos of Assam’s Pobitora Wildlife Sanctuary, referred to as ‘Mini Kaziranga’ for similar features, of their nutritious food.

    Try this PYQ:

    Q. Consider the following statements:

    1. Asiatic lion is naturally found in India only.
    2. Double-humped camel is naturally found in India only.
    3. One-horned rhinoceros is naturally found in India only.

    Which of the statements given above is/are correct?

    (a) 1 only

    (b) 2 only

    (c) 1 and 3 only

    (d) 1, 2 and 3

    About Pobitora Wildlife Sanctuary

    • Pobitora WLS is located on the southern bank of the Brahmaputra in Morigaon district in Assam.
    • It was declared in 1987 and covers 38.85 km2 (15.00 sq mi), providing grassland and wetland habitat for the Indian rhinoceros.
    • It provides a habitat and food resource for the Indian rhinoceros, hosting Assam’s second-largest population.
    • Other mammals occurring in the sanctuary are golden jackal, wild boar and feral water buffalo.
    • Barking deer, Indian leopard and rhesus macaque live foremost in the hilly parts. It is an Important Bird Area and home for more than 2000 migratory birds and various reptiles.

    Why in news?

    • Pobitora is running a successful Rhino breeding program within its sanctuary.
    • It is running under the government as “Indian Rhino vision 2020”.

    Back2Basics: Kaziranga National Park and Tiger Reserve

    • The KNTPR is a national park in the Golaghat, Karbi Anglong and Nagaon districts of the state of Assam.
    • The sanctuary, which hosts two-thirds of the world’s great one-horned rhinoceroses, is a World Heritage Site.
    • Kaziranga is home to the highest density of tigers among protected areas in the world and was declared a Tiger Reserve in 2006 (now the highest tiger density is in Orang National Park, Assam).
    • The park is home to large breeding populations of elephants, wild water buffalo, and swamp deer.
    • It is also recognized as an Important Bird Area by BirdLife International for the conservation of avifaunal species.

  • Revised height of Mount Everest

    Nepal and China jointly announced the new height of Mount Everest as 8,848.86 meters.

    8,848 metres — the answer to one of the most widely popular quiz questions, and a number drilled into the minds of school students around the world for decades, is set for a revision.

    Mt. Everest

    • Mount Everest or Sagarmatha, Earth’s highest mountain above sea level, is located in the Himalayas between China and Nepal -– the border between them running across its summit point.
    • Its current official elevation – 8,848.86m – places it more than 200m above the world’s second-highest mountain, K2, which is 8,611m tall and located in Pakistan-occupied Kashmir.
    • The mountain gets its English name from Sir George Everest, a colonial-era geographer who served as the Surveyor General of India in the mid-19th century.
    • Considered an elite climbing destination, Everest was first scaled in 1953 by the Indian-Nepalese Tenzing Norgay and New Zealander Edmund Hillary.

    Try this PYQ:

    Q.When you travel to the Himalayas, you will see the following:

    1. Deep gorges
    2. U-turn river courses
    3. Parallel mountain ranges
    4. Steep gradients causing land-sliding

    Which of the above can be said to be the evidences for the Himalayas being young fold mountains?

    (a) 1 and 2 only

    (b) 1, 2 and 4 only

    (c) 3 and 4 only

    (d) 1, 2, 3 and 4

    Everest’s first survey

    • The mission to measure the world’s highest peak was taken up on a serious note in 1847 and culminated with the finding of a team led by Andrew Waugh of the Royal Surveyor General of India.
    • The team discovered that ‘Peak 15’ — as Mt Everest was referred to then — was the highest mountain, contrary to the then-prevailing belief that Mt Kanchenjunga (8,582 m) was the highest peak in the world.
    • Another belief, prevailing even today, is that 8,840 m is not the height that was actually determined by the 19th-century team.
    • That survey, based on trigonometric calculations, is known as the Great Trigonometric Survey of India.

    Why is the height being revised?

    • The height of the summit, however, is known to change because of tectonic activity, such as the 2015 Nepal earthquake.
    • Its measurement over the decades has also depended on who was surveying.
    • Another debate is whether the height should be based on the highest rock point or the highest snow point.

  • Climate Change Performance Index (CCPI) 2020

    India ranked high along with the European Union and the United Kingdom in the latest edition of the Climate Change Performance Index (CCPI) 2020 released by non-profit Germanwatch.

    It’s a very rare feat that India has performed so better in any climate-related index. We can use this data to highlight India’s dedicated efforts for Paris Agreement.

    Climate Change Performance Index (CCPI)

    • The CCPI is an independent monitoring tool for tracking countries’ climate protection performance. It has been published annually since 2005.
    • It evaluates 57 countries and the European Union, which together generate 90%+ of global greenhouse gas emissions.
    • Using standardised criteria, the CCPI looks at four categories, with 14 indicators: Greenhouse Gas Emissions (40% of the overall score), Renewable Energy (20%), Energy Use (20%), and Climate Policy (20%).
    • The CCPI’s unique climate policy section evaluates countries’ progress in implementing policies working towards achieving the Paris Agreement goals.

    Global scenario

    • No country was doing enough to meet the goals of the 2015 Paris Agreement, according to the index.
    • Six G20 countries were ranked among very low performers. The United States, with a rank of 61, was the worst performer.

    India’s performance

    • India, for the second time in a row, continued to remain in the top 10. The country scored 63.98 points out of 100.
    • It received high ratings on all CCPI indicators except ‘renewable energy’, where it was categorised as having a ‘medium’ performance.
    • Last year, India had been ranked at the ninth position, with an overall score of 66.02.
    • India needed to focus more on renewable energy, both, as a mitigation strategy and for its post-novel coronavirus disease (COVID-19) green recovery, the report said.

    Renewable energy

    • No country was rated very high on indicators defining the ‘renewable energy’ category.
    • India has been ranked at 27th out of 57 countries under the category this time. Last year, it was ranked at 26th.
    • India’s performance has been rated as ‘medium’ for its current share of renewable energy. Its performance for the development of renewable energy supply during the last year was rated as ‘high’.

    A positive sign for India

    • India’s improved policy framework has been responsible for the country’s good performance in this global index. However, the report underlined the need for long-term planning.
    • Unlike the other two ‘BASIC’ countries of China and South Africa, India is yet to announce its mitigation strategy.

  • Eco-ducts or Eco-bridges and their significance

    Ramnagar Forest Division in Nainital district, Uttarakhand, recently built its first eco-bridge for reptiles and smaller mammals.

    Q.Discuss how Eco-ducts or eco-bridges provide the best alternative for wildlife connectivity which is disrupted because of manmade highways. Also, discuss various challenges in building such bridges.

    What are Eco-bridges?

    • Eco-ducts or eco-bridges aim to enhance wildlife connectivity that can be disrupted because of highways or logging.
    • These include canopy bridges (usually for monkeys, squirrels and other arboreal species); concrete underpasses or overpass tunnels or viaducts (usually for larger animals); and amphibian tunnels or culverts.
    • Usually, these bridges are overlaid with planting from the area to give it a contiguous look with the landscape.

    Why need such bridges?

    • There are many roadkills on this route, especially of reptiles such as the monitor lizard.
    • The bridge is an awareness-building mechanism for this very congested tourist route.
    • These bridges are a way to see how we can preserve the ecosystem necessary for reptiles that feed on insects, for snakes that feed on reptiles, and for eagles that feed on snakes.

    Need of the hour

    • A 2020 study by the Wildlife Institute of India (WII) noted that nearly 50,000 km of road projects have been identified for construction over the next five to six years.
    • Many highways are being upgraded to four lanes.
    • The National Tiger Conservation Authority had identified three major sites that were cutting across animal corridors.
    • These including National Highway 37 through the Kaziranga-Karbi Anglong landscape in Assam, and State Highway 33 through the Nagarhole Tiger Reserve in Karnataka.

    Some considerations

    • The span and distribution of eco-bridges should depend on animal movement patterns.
    • The bigger bridges will see sambar, spotted deer, nilgai, wild pig using them, while for tigers or leopards if the bridge is 5m or 500 m, it doesn’t bother them.
    • But some animals like the deers, which prefer closed habitats, need smaller bridges.

    Some successes

    • The observation on NH 44, which intersects Kanha-Pench and Pench-Navegaon-Nagzira corridors in various sections, is a success.
    • With five animal underpasses and four minor bridges on the 6.6-km road within the forests, it’s one of India’s success stories.

    Such bridges in news

    • One of the largest underpasses – 1.4km – for animal conservation in India is being built along the Madhya Pradesh-Maharashtra border.
    • Other proposals include the Chennai-Bangalore National Highway, in the Hosur-Krishnagiri segment, near reserve forests for elephant crossings, and in the Tadoba-Andhari Tiger Reserve in Chandrapur, Maharashtra.

  • Rat Hole Mining in Meghalaya

    Rat-hole coal mining had sucked the life out of a village in Meghalaya’s East Jaintia Hills district.

    Q.Despite a ban, rat-hole mining continues to prevail as an important practice in Meghalaya. What are the issues associated with it? Discuss. (150W)

    Rat Hole Mining

    • It is a primitive and hazardous method of mining for coal, with tunnels that are only 3-4 feet in diameter (hence, rat-hole), leading to pits ranging from 5-100 sq. mt deep.
    • It involves digging of very small tunnels in which workers, more often children, enter and extract coal.
    • Although the coal is of bad quality, people see it as a treasure chest.
    • In backward regions, where there is the loss of livelihood, lack of employment opportunities and under-education, people see rat-hole mines as an opportunity to earn daily bread.
    • A major portion of these employees are children, who are preferred because of their thin body shape and ease to access depths.

    Despite a ban

    The National Green Tribunal banned rat-hole mining in Meghalaya in 2014 on a petition that said acidic discharge from the mines was polluting the Kopili River. But the practice continues unabated.

    Threats of such mining

    • Water from rivers and streams in the mining area has become unfit for drinking and irrigation and is toxic to plants and animals.
    • Layers of rock above the coal removed during mining contain traces of iron, manganese and aluminium that get dissolved from mining sites through the acid run-off or are washed into streams as sediment.
    • There are several mishaps where workers get trapped to death due to the sudden collapse of such mines.

  • Species in news: Red Sea Turtles

    Turtle populations in the Red Sea could be turning overwhelmingly female because of a rise in sea temperatures caused due to anthropogenic climate change, a new study has showed.

    Try this PYQ:

    Q.Consider the following fauna of India:

    1. Gharial
    2. Leatherback turtle
    3. Swamp deer

    Which of the above is/are endangered?

    (a) 1 and 2 only

    (b) 3 only

    (c) 1, 2 and 3

    (d) None

    Red Sea Turtles

    • There are seven extant species worldwide, five of which can be found in the Red Sea: the green turtle, the hawksbill turtle, the loggerhead turtle, the olive ridley turtle and the leatherback turtle.
    • In order to maintain a 50:50 ratio of male and female in the population, a temperature of 29.2 degrees Celsius is pivotal.
    • Above this, hatchlings would be predominantly female.
    • The sand temperatures at four of the sites exceeded 29.2 degrees; leading the team to the conclusion that ‘feminization’ of the population could be already happening.

    Their significance

    • Marine turtles—as all top predators—have a prominent role in maintaining balanced and healthy ecosystems, in particular seagrass beds and coral reefs.
    • They also help in transporting nutrients towards naturally nutrient-poor ecosystems (the nesting beaches), and providing food and transportation for other marine species (e.g., barnacles and commensal crabs).
    • Marine turtles also play an important role in the economy of the tourism industry.

  • Jadav Payeng: The Forest Man of India

    Jadav Payeng, known as ‘The Forest Man of India’, takes us through his journey of grit that saw a desert turning into a forest. His story is been depicted through an upcoming trilingual film.

    We knew about the mountain man in India. We have also had the Forest Man of India who is also a living inspiration for successful afforestation. We can quote such examples in essays very well.

    Who is Jadav Payeng?

    • Jadav “Molai” Payeng (born 1963) is an environmental activist and forestry worker from Majuli Island popularly known as the Forest Man of India.
    • He was born in the indigenous Mising tribe of Assam.
    • Over the course of several decades, he has planted and tended trees on a sandbar of the river Brahmaputra turning it into a forest reserve.
    • The forest, called Molai forest after him is located near Kokilamukh of Jorhat, Assam, India and encompasses an area of about 1,360 acres / 550 hectares.
    • In 2015, he was honoured with Padmashri, the fourth highest civilian award in India.

    His work

    • The forest, which came to be known as Molai forest, now houses Bengal tigers, Indian rhinoceros, and over 100 deer and rabbits.
    • Molai forest is also home to elephants and several varieties of birds, including a large number of vultures.
    • Bamboo covers an area of over 300 hectares.

  • World Heritage Irrigation Structure (WHIS) Sites

    Four sites in India have received the World Heritage Irrigation Structure (WHIS) tag this year.

    Try this PYQ:

    Q.The FAO accords the status of ‘Globally Important Agricultural Heritage Systems (GIAHS)’ to traditional agricultural systems. What is the overall goal of this initiative?

    1. To provide modern technology, training in modern farming methods and financial support to local communities of identified GIAHS so as to greatly enhance their agricultural productivity.
    2. To identify and safeguard eco-friendly traditional farm practices and their associated landscapes, agricultural biodiversity and knowledge systems of the local communities.
    3. To provide Geographical Indication status to all the varieties of agricultural produce in such identified GIAHS.

    Select the correct answer using the code given below:

    (a) 1 and 3 only

    (b) 2 only

    (c) 2 and 3 only

    (d) 1, 2 and 3

    World Heritage Irrigation Structure (WHIS)

    • The International Commission on Irrigation and Drainage (ICID) annually recognizes irrigation structures of international significance like UNESCO’s World Heritage Sites.
    • The recognition is aimed at recognizing and tracing the history of and understanding the evolution of irrigation in civilizations across the world.
    • It also aims at understanding the philosophy and wisdom on sustainable irrigation from these structures and to preserve them for posterity.

    Criteria for consideration

    • Major criteria for WHIS entail that a structure should be more than 100 years old, should be functional, achieving food security and have archival value.
    • Each site is evaluated based on its merits first by the state government.
    • The proposal is then sent to the Centre and a team from CWC carries out an on-ground survey to verify details.

    Which are the Indian sites?

    • The sites are Cumbum Tank, Kurnool-Cuddapah Canal, Porumamilla Tank (Anantharaja Sagaram) in Andhra Pradesh and 490-year-old Dhamapur Lake in Maharashtra’s Sindhudurg district.
    • In 2018, Pedda Cheru Tank in Kamareddy district and Sadarmat Anicut in Nirmal district, both in Telangana, were named as WHIS sites.

    Other sites

    • The rest include Tianbao Weir in China at number one followed by Longshou Canal and ancient Luohe river irrigation district, China.
    • It also includes Zarch and Moon Qanat both in Iran and Tenguiwa, Bizenkyo and Jyosai Gokuchi irrigation systems in Japan with Goseong Dumbeong in the Republic of Korea.

    About ICID

    • The ICID, established in 1950 is a leading scientific, technical, international not-for-profit, non-governmental organization.
    • It is a professional network of experts from across the world in the field of irrigation, drainage, and flood management.
    • The main mission is to promote ‘Sustainable agriculture water management’ to achieve ‘Water secure world free of poverty and hunger through sustainable rural development’.
    • ICID mission covers the entire spectrum of agricultural water management practices ranging from rainfed agriculture to supplemental irrigation, land drainage, deficit irrigation to full irrigation, etc.