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Subject: Environment

  • What is the ‘Doomsday Clock’?

    The hands of the ‘Doomsday Clock’, a visual depiction of how vulnerable the world is to a climate or nuclear catastrophe, remained at ‘100 seconds to midnight’ for the second consecutive year — the closest it has been to the symbolic annihilation of humanity.

    Q.The ‘Doomsday Clock’ represents the hypothetical countdown to raise human consciousness against mutually assured destruction. In this light, discuss various existential threats to humanity and action taken so far.

    What is the ‘Doomsday Clock’?

    • The Bulletin of the Atomic Scientists, founded by Albert Einstein and students from the University of Chicago in 1945, created the ‘Doomsday Clock’.
    • It is held as a symbol to represent how close the world is to a possible apocalypse.
    • It is set annually by a panel of scientists, including 13 Nobel laureates, based on the threats — old and new — that the world faced in that year.
    • When it was first created in 1947, the hands of the clock were placed based on the threat posed by nuclear weapons, which the scientists then perceived to be the greatest threat to humanity.
    • Over the years, they have included other existential threats, such as climate change and disruptive technologies like artificial intelligence.

    Significance of such clock

    • The reason the scientists selected a clock is twofold — they wanted to use the imagery of an apocalypse (midnight) as well as the “contemporary idiom of a nuclear explosion” (zero countdowns) to illustrate the threats to humanity.
    • The clock was originally set to seven minutes to midnight and has since moved closer or further away from the dreaded 12 o’clock position.
    • The furthest it has been being 17 minutes after the end of the Cold War in 1991.

    Why was the clock set at ‘100 seconds from midnight’?

    • It was set at the ‘100 seconds from midnight’ position due to the prevailing climate conditions, “cyber-based disinformation”, nuclear risk and the pandemic.
    • It is the closest to Doomsday we have ever been in the history of the Clock.
    • We now face a true emergency – an absolutely unacceptable state of world affairs that has eliminated any margin for error or further delay.

  • National Marine Turtle Action Plan

    The Ministry of Environment Forest and Climate Change (MoEFCC) has launched the National Marine Turtle Action Plan.

    Do you know?

    Most people use the term “turtle” to reference any reptile with a shell on its back, but there are several differences between these two unique creatures. In actual sense tortoises are turtles, but not all turtles are tortoises.

    Tortoises have more rounded and domed shells where turtles have thinner, more water-dynamic shells.  Turtle shells are more streamlined to aid in swimming. One major key difference is that tortoises spend most of their time on land and turtles are adapted for life spent in water.

    National Marine Turtle Action Plan

    Aim: To strengthen and sustain collective and collaborative sea turtle conservation through the monitoring of key sites and a network of partners in the Indian sub-continent

    Project details

    • The project contains ways and means to not only promote inter-sectoral action for conservation but also guide improved coordination amongst the government, civil society and all relevant stakeholders.
    • It highlights actions to be taken for handling stranded animals on the shore, stranded or entangled animals in the sea or on a boat, reducing threats to marine species and their habitats, rehabilitation, etc.

    Why need such a project?

    • India has rich marine biodiversity along a vast coastline of over 7,500 km.
    • It has significant  nesting  and  feeding  grounds  for  four  species  of  marine  turtles,  namely  leatherback  (Dermochelys  coriacea),  green  (Chelonia  mydas), hawksbill (Eretmochelys  imbricata)  and  olive  ridley  (Lepidochelys  olivacea)
    • Even though all four species are listed under Schedule I  of the  Indian  Wild  Life  (Protection)  Act,  1972,  their populations in the  Indian waters are under threat.

  • Green Tax for personal vehicles older than 15 years

    The Union Minister for Road Transport and Highways has approved a proposal to levy a ‘green tax’ on old vehicles.

    Do read about Green Mobility, India’s FAME-I and II Scheme.

    Green Tax

    • Personal vehicles will be charged a tax at the time of renewal of Registration Certification after 15 years.
    • The policy will come into effect from April 1, 2022.
    • The levy may differ depending on fuel (petrol/diesel) and type of vehicle.
    • The proposal will now go to the States for consultation before it is formally notified.
    • It includes 10-25% of road tax on transport vehicles older than eight years at the time of renewal of fitness certificate.
    • The proposal on green tax also includes a steeper penalty of up to 50% of road tax for older vehicles registered in some of the highly polluted cities in the country.
    • Revenue collected from this tax will be kept in a separate account and will be used for tackling pollution, and for States to set up state-of-art facilities for emission monitoring.

    Why such a move?

    • To dissuade people from using vehicles which damage the environment
    • To motivate people to switch to newer, less polluting vehicles
    • Green tax will reduce the pollution level, and make the polluter pay for pollution

    Exemptions to this tax

    • Vehicles like strong hybrids, electric vehicles and alternate fuels like CNG, ethanol, LPG etc to be exempted;
    • Vehicles used in farming, such as tractor, harvester, tiller etc to be exempted;

    Other proposals

    • The Ministry also approved a watered-down policy of deregistration and scrapping of vehicles, bringing only those vehicles owned by government departments and PSUs and are older than 15 years under its ambit.
    • In 2016, the Centre had floated a draft Voluntary Vehicle Fleet Modernization Programme that aimed to take 28 million decade-old vehicles off the road.

  • Global Climate Risk Index 2021

    India was ranked the seventh worst-hit country in 2019 in the Global Climate Risk Index 2021.

    The report holds much significance for prelims as well as mains. Just for the sake of information, we must be aware of India’s performance.

    Global Climate Risk Index

    • The GCRI is released annually by the environmental think tank and sustainable development lobbyist Germanwatch.
    • It analyses to what extent countries have been affected by the impacts of weather-related loss events (storms, floods, heat waves etc.).
    • It pushes for the need to support developing countries in coping with the effects of climate change.

    Highlights of the 2020 year

    Global prospects

    • Mozambique, Zimbabwe and The Bahamas were the worst-affected countries in 2019.
    • While hurricane Dorian ravaged The Bahamas; Mozambique, Zimbabwe and Malawi were affected by the single extreme weather event of cyclone Idai.
    • Japan and Afghanistan were the other countries that fared worse than India on the Index, while South Sudan, Niger and Bolivia fared better in comparison but still made it to the top 10 worst-affected countries.

    The burden of development

    • Eight of the 10 countries most affected between 2000 and 2019 were developing countries with low or lower middle income per capita.
    • Vulnerable people in developing countries suffered most from extreme weather events like storms, floods and heatwaves, whereas the impact of climate change was visible around the globe.
    • Poorer countries are hit hardest because they are more vulnerable to the damaging effects of a hazard and have the lower coping capacity.

    Data about India

    • According to the Index floods caused by heavy rain in 2019 took 1,800 lives across 14 states in India and displaced 1.8 million people.
    • Overall, the intense monsoon season affected 11.8 million people, with the economic damage estimated to be $10 billion (Rs.72,900 crore at $1=INR 72.9).
    • A total of eight tropical cyclones meant that 2019 was one of the most active Northern Indian Ocean cyclone seasons on record. Six of them intensified to become “very severe”.
    • The worst was Cyclone Fani in May 2019 which affected a total of 28 million people, killing nearly 90 people in India and Bangladesh, and causing economic losses of $8.1 billion (Rs.59,066 crore).

  • Places in news: Sundarban Biosphere Reserve

    Indian Sunderbans, which is part of the largest mangrove forest in the world, is home to 428 species of birds, a recent publication of the Zoological Survey of India (ZSI) States.

    Sundarban Biosphere Reserve

    • Sundarbans is the largest delta and mangrove forest in the world.
    • The Indian Sunderbans, which covers 4,200 sq km, comprises of the Sunderban Tiger Reserve of 2,585 sq km is home to about 96 Royal Bengal Tigers (2020) is also a world heritage site and a Ramsar Site.
    • The Indian Sunderbans is bound on the west by river Muriganga and on the east by rivers Harinbhahga and Raimangal.
    • Other major rivers flowing through this eco-system are Saptamukhi, Thakuran, Matla and Goasaba.
    • Recent studies claim that the Indian Sundarban is home to 2,626 faunal species and 90% of the country’s mangrove varieties.

    What is the latest research?

    • The scientists have listed 428 birds, some, like the Masked Finfoot and Buffy fish owl, are recorded only from the Sunderbans.
    • India has over 1,300 species of birds and if 428 species of birds are from Sunderbans.
    • The area is home to nine out of 12 species of kingfishers found in the country as well rare species such as the Goliath heron and Spoon-billed Sandpiper.

    Try this PYQ:

    With reference to India’s biodiversity, Ceylon frogmouth, Coppersmith barbet, Gray-chinned miniyet and White-throated redstart are–

    (a) Birds

    (b) Primates

    (c) Reptiles

    (d) Amphibians

  • India’s Draft Arctic Policy

    India has unveiled a new draft ‘Arctic’ policy that and is committed to expanding scientific research, “sustainable tourism” and mineral oil and gas exploration in the Arctic region.

    Note: Five Arctic littoral states — Canada, Denmark (Greenland), Norway, Russia and the USA (Alaska) — and three other Arctic nations — Finland, Sweden and Iceland — form the Arctic Council (estd. 1996).

    Try mapping them.

    Caution: India became an Observer in the Arctic Council for the first time in 2013. And, India isn’t a full-time observer.

    India at the Arctic

    • India launched its first scientific expedition to the Arctic in 2007 and set up a research station ‘Himadri’ in the international Arctic research base at Ny-Ålesund in Spitsbergen, Svalbard, Norway.
    • It has two other observatories in Kongsforden and Gruvebadet. Himadri is manned for about 180 days a year.
    • Since its establishment, over 300 Indian researchers have worked in the station. India has sent 13 expeditions to the Arctic since 2007 and runs 23 active projects.

    Draft ‘Arctic’ policy

    • The draft policy discusses the importance of understanding the impact of climate change in the Arctic region and its connection with India’s monsoon, which is crucial for its economy.
    • India also proposes to focus on vast resources of the Arctic region including hydrocarbons, minerals and renewable power to ensure its energy security.
    • The policy is cautious in framing its involvement in the Arctic as “common heritage of mankind” but its priorities are similar to that of other non-Arctic states.
    • This policy roadmap draft rides on five pillars:
    1. Science and research activities,
    2. Economic and human development cooperation,
    3. Transportation and connectivity,
    4. Governance and international cooperation, and
    5. National capacity building.

    Nodal bodies

    • The Goa-based National Centre for Polar and Ocean Research to lead scientific research and act as a nodal body.
    • It would thus coordinate among various scientific bodies to promote domestic scientific research capacities by expanding earth sciences, biological sciences, climate change and space-related programmes, dove-tailed with Arctic imperatives.

    Why study arctic?

    • The Arctic is home to almost four million inhabitants, of which approximately one-tenth are considered as indigenous people.
    • Climate change has meant that seasons in the Arctic influence tropical weather.
    • The Arctic influences atmospheric, oceanographic and biogeochemical cycles of the earth’s ecosystem.
    • The loss of sea ice, ice caps, and warming of the ocean and atmosphere would lower salinity in the global oceans.
    • This could increase the temperature differential between land and oceans in the tropical regions, dry subtropical areas and increase precipitation at higher latitudes.
    • Arctic research will help India’s scientific community to study melting rates of the third pole — the Himalayan glaciers.

  • What is Nitrogen-Use Efficiency (NUE)?

    A group of Indian scientists have found a way to improve crops by reducing wastage of nitrogen fertilizers applied to them.

    Try this PYQ:

    Q.Which of the following adds/add nitrogen to the soil?

    1. Excretion of Urea by animals
    2. Burning of coal by man
    3. Death of vegetation

    Select the correct answer using the code given below:

    (a) 1 only

    (b) 2 and 3 only

    (c) 1 and 3 only

    (d) 1, 2, and 3

    Nitrogen-Use Efficiency

    • NUE is calculated as a ratio between nitrogen used and harvest: A higher number denotes low wastage.
    • With the efficiency on the decline, farmers use more fertiliser in the hope of raising yield. This in turn worsens NUE.
    • Crops generally use up 30 per cent of nitrogen fertilizer applied; the rest seeps into the environment, harming health and adding to climate change.
    • Researchers were able to identify phenotypes or visibly identifiable features that determine the efficiency with which cultivated rice varieties (cultivars) use nitrogen.
    • This efficiency is known as nitrogen-use efficiency (NUE).
    • Cereals consume over 69 per cent of nitrogen fertilizers in India; rice tops the list with 37 per cent, followed by wheat (24 per cent).

    Nitrogen Pollution: the reason behind

    • Agriculture leads to 70 per cent of nitrous oxide emissions in India.
    • Of this, 77 per cent is contributed by fertilizers, mostly urea, according to the Indian Nitrogen Assessment published in 2017.
    • This greenhouse gas (GHG) is 300 times more potent than carbon dioxide.
    • It has replaced methane as the second-largest component of GHG emissions from Indian agriculture in the past 15 years.

    Must read:

    [Burning Issue] Nitrogen Pollution in India

  • Places in news: Harike Wetland

    Winter migratory waterbirds using the central Asian flyway have started making a beeline to Punjab’s Harike wetland, offering a delight for bird lovers.

    Try this PYQ:

    Q.In which one among the following categories of protected areas in India are local people not allowed to collect and use the biomass?

    (a) Biosphere reserves

    (b) National parks

    (c) Wetlands declared under Ramsar convention

    (d) Wildlife sanctuaries

    Harike Wetland

    • Harike Wetland also is the largest wetland in northern India in the border of Tarn Taran Sahib district and Ferozepur district of Punjab.
    • The wetland and the lake were formed by constructing the headworks across the Sutlej River in 1953.
    • The headworks is located downstream of the confluence of the Beas and Sutlej rivers just south of Harike village.
    • The rich biodiversity of the wetland which plays a vital role in maintaining the precious hydrological balance in the catchment with its vast concentration of migratory fauna.
    • It was accorded as a wetland in 1990, by the Ramsar Convention, as one of the Ramsar sites in India, for conservation, development and preservation of the ecosystem.

    Back2Basics: Ramsar Convention

    • The Convention on Wetlands of International Importance (better known as the Ramsar Convention) is an international agreement promoting the conservation and wise use of wetlands.
    • It is the only global treaty to focus on a single ecosystem.
    • The convention was adopted in the Iranian city of Ramsar in 1971 and came into force in 1975.
    • Traditionally viewed as a wasteland or breeding ground of disease, wetlands actually provide fresh water and food and serve as nature’s shock absorber.
    • Wetlands, critical for biodiversity, are disappearing rapidly, with recent estimates showing that 64% or more of the world’s wetlands have vanished since 1900.
    • Major changes in land use for agriculture and grazing, water diversion for dams and canals and infrastructure development are considered to be some of the main causes of loss and degradation of wetlands.

  • UN Adaptation Gap Report, 2020

    The United Nations Adaptation Gap Report, 2020 was recently released by the UNEP.

    Must read edition: Five years of Paris Agreement

    UN Adaptation Gap Report

    • UN Environment Programme (UNEP) has managed the production of UN Environment’s Adaptation Gap Report series since its first edition in 2014.
    • The aim of the reports is to inform national and international efforts to advance climate change adaptation.

    Behind the concept: Adaptation Cost

    • Adaptation Cost includes costs of planning, preparing for, facilitating and implementing the climate change adaptation measures.
    • It thus derives benefits as the avoided damage costs or the accrued benefits following the adoption and implementation of adaptation measures.

    Highlights of the 2020 report

    • The annual cost of adaptation to the effects of climate change for developing countries is estimated to at least quadruple by 2050, according to the United Nations Adaptation Gap Report, 2020.
    • The current cost for developing countries is in the range of $70 billion (Rs 5.1 lakh crore) and may rise to $140-300 billion in 2030 and $280-500 billion in 2050.

    Funding gaps

    • The ever-increasing adaptation cost has also outpaced the growth in adaptation finance that refers to the flow of funds to developing countries to help them tide over the damages caused by climate change.
    • This, in turn, has kept the adaptation finance gap from closing with the current efforts, although the fund flow has increased, the report said.
    • Adaptation costs, in actual terms, are higher in developed countries but the burden of adaptation is greater for developing countries in relation to their gross domestic product.
    • These countries, especially in Africa and Asia, which are least equipped to tackle climate change will also, be the most impacted by it, the report noted.

  • Great Green Wall (GGW) Project

    The Great Green Wall (GGW) Project to address desertification, land degradation and climate change in the Sahel region of Africa has hit a new low due to funds crunch.

    Note the countries swept by the GGW project on the African map.

    GGW Project

    • The Great Green Wall project is conceived by 11 countries located along the southern border of the Sahara and their international partners, is aimed at limiting the desertification of the Sahel zone.
    • Led by the African Union, the initiative aims to transform the lives of millions of people by creating a mosaic of green and productive landscapes across North Africa.
    • The initial idea of the GGW was to develop a line of trees from east to the west bordering the Saharan Desert.
    • Its vision has evolved into that of a mosaic of interventions addressing the challenges facing the people in the Sahel and the Sahara.

    Why was such project incepted?

    • The project is a response to the combined effect of natural resources degradation and drought in rural areas.
    • It aimed to restore 100 million hectares of degraded land by 2030; only four million hectares had been restored between 2007 and 2019.
    • It is a partnership that supports communities working towards sustainable management and use of forests, rangelands and other natural resources.
    • It seeks to help communities mitigate and adapt to climate change, as well as improve food security.