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Subject: Environment

  • Wildlife Week

    Celebrating Wildlife Week

    • Wildlife Week is celebrated every year in India between October 1 and 8.
    • The annual theme of the campaign is to promote the preservation of fauna – i.e. animal life.
    • Wildlife Week was conceptualized in 1952 with the overall goal of raising awareness to serve the long-term goal of safeguarding the lives of wildlife through critical action.
    • In addition, the Indian Government established an Indian Board of Wild Life which works to improve awareness towards the preservation of wildlife.

  • China’S Climate Commitment

    Context- Speaking at the UN General Assembly, Chinese President Xi Jinping made two promises that came as a welcome surprise to climate change watchers.

    What has China announced ?

    • First, Xi said, China would become carbon net-zero by the year 2060.
      • Net-zero is a state in which a country’s emissions are compensated by absorptions and removal of greenhouse gases from the atmosphere.
      • Absorption can be increased by creating more carbon sinks such as forests, while removal involves application of technologies such as carbon capture and storage.
    • Second, the Chinese President announced a small but important change in China’s already committed target for letting its emissions “peak”, from “by 2030” to “before 2030”.
      • That means China would not allow its greenhouse gas emissions to grow beyond that point.
      • Xi did not specify how soon “before 2030” means, but even this much is being seen as a very positive move from the world’s largest emitter.

    How significant is China’s commitment?

    • China is the world’s largest emitter of greenhouse gases. It accounts for almost 30% of global emissions, more than the combined emissions in the United States, the European Union and India, the three next biggest emitters.
    • Getting China to commit itself to a net-zero target is a big breakthrough, especially since countries have been reluctant to pledge themselves to such long term commitments.
    • So far, the European Union was the only big emitter to have committed itself to a net-zero emission status by 2050.

  • Environmentalism at the core

    The article explains the importance of focusing on the green supply chain for ensuring sustainability along with the progress of the organisations.

    Sustainability as an essential issue

    • The U.N’s. Millennium Development Goals and the World Bank Group’s global practices have recognised sustainability as an essential issue of global importance.
    • Economic, social and other forms of sustainability have evolved over the years, but it is environmental sustainability that has gained significant popularity.

    Economy and sustainability

    • Some firms have positioned environmental practices at the forefront due to legislation, and industry and government commitments.
    • Several firms have prioritised environmental practices due to compelling regulatory norms, and a potential to manage costs, risks and optimise eco-friendly practices.
    • However, organisations in the manufacturing sector focus on waste reduction and energy efficiency improvements excessively and fail to see the big picture of environmentalism.

    Adopting green supply chains for long-lasting benefits

    • Only through organisational learning can people be urged to work towards long-lasting benefits.
    • In this context, green supply chain practices are useful.
    • These include green procurement, green manufacturing, green distribution, and reverse logistics.
    • With practices starting from acquisition of eco-friendly raw material to disposal/ reuse/ recycle of used products, employees, suppliers, distributors, retailers and customers will be able to integrate environmental concerns in the daily operations of a firm.
    • Thus, green supply chain practices enable organisational learning in environmental sustainability.
    •  Research shows that the positive impacts of environmentalism can only be felt in the long term when they get embedded into organisational learning systems through green supply chain practices.
    • The resultant learning system smoothens the knowledge flow in the organisation.

    Focusing on linkages

    • Linkages between green supply chain practices, corporate environmental performance, corporate economic performance is necessary for an organisation’s progress and environmental protection.
    • When the different players of a manufacturing supply chain realise the inherent benefits associated with organisational learning dimensions, their drive towards environmentalism increases.

    Conclusion

    Policymakers should support this thinking by not merely imposing environmental practices as regulatory norms but by emphasising on the creation of green supply chain-based learning systems in manufacturing.

  • Location in news: English Channel

    Hundreds of migrants have taken advantage of the warm weather and calm seas in the English Channel to reach the UK in a flurry of small boat crossings.

    Try this PYQ:

    Q.Which one of the following pairs of islands is separated from each other by the ‘Ten Degree Channel’?

    (a) Andaman and Nicobar

    (b) Nicobar and Sumatra

    (c) Maldives and Lakshadweep

    (d) Sumatra and Java

    English Channel

    • The English Channel is an arm of the Atlantic Ocean that separates southern England from northern France.
    • It links to the southern part of the North Sea by the Strait of Dover at its northeastern end.
    • It is the busiest shipping area in the world.
    • It is about 560 km long and varies in width from 240 km at its widest to 34 km in the Strait of Dover.
    • It is the smallest of the shallow seas around the continental shelf of Europe.

  • What are Medicanes?

    Very recently, a medicane named Ianos made landfall along the coast of Greece and caused heavy rainfall and flooding on the islands of Zakynthos, Kefalonia and Ithaca.

    Try this PYQ:

    In the South Atlantic and South-Eastern Pacific regions in tropical latitudes, cyclone does not originate. What is the reason?

    (a) Sea surface temperatures are low

    (b) Inter-Tropical Convergence Zone seldom occurs

    (c) Coriolis force is too weak

    (d) Absence of land in those regions

    What are Medicanes?

    • Medicanes are extra-tropical hurricanes observed over the Mediterranean Sea.
    • Medicanes occur more in colder waters than tropical cyclones, hurricanes and typhoons.
    • Hence, the cores of these storms are also cold, as compared to the warm cores of tropical cyclones.
    • Warmer cores tend to carry more moisture (hence rainfall), are bigger in size and have swifter winds.
    • The main societal hazard posed by Medicanes is not usually from destructive winds but through life-threatening torrential rains and flash floods.

    Why in news?

    • This year is a mild La Niña, according to the World Meteorological Organization.
    • La Niña is the cooling phase of the El Niño Southern Oscillation (ENSO) cycle in the equatorial Pacific Ocean, as opposed to the warming El Niño phase.
    • It is characterized by the unusual cooling of the central and east-central equatorial Pacific Ocean.
    • A La Niña produces more rain in the central-eastern part, where most of the Mediterranean cyclones develop.

  • [pib] “Blue Flag” Certification

    The Union Ministry of Environment, Forest and Climate Change (MoEFCC) has announced the first time eight beaches of India are recommended for the coveted International eco-label, the Blue flag certification.

    Try this PYQ:

    Q. At one of the places in India, if you stand on the seashore and watch the sea, you will find that the seawater recedes from the shoreline a few kilometers and comes back to the shore, twice a day, and you can actually walk on the seafloor when the water recedes. This unique phenomenon is seen at:

    (a) Bhavnagar

    (b) Bheemunipatnam

    (c) Chandipur

    (d) Nagapattinam

    Which are the eight beaches?

    The eight beaches are Shivrajpur in Gujarat, Ghoghla in Daman & Diu, Kasargod and Padubidri beach in Karnataka, Kappad in Kerala, Rushikonda in Andhra Pradesh, Golden beach of Odisha and Radhanagar beach in Andaman and Nicobar.

    About Blue Flag Certification

    • This Certification is accorded by an international agency “Foundation for Environment Education, Denmark” based on 33 stringent criteria in four major heads i.e.
    1. Environmental Education and Information,
    2. Bathing Water Quality,
    3. Environment Management and Conservation and
    4. Safety and Services on the beaches.
    • It started in France in 1985 and has been implemented in Europe since 1987, and in areas outside Europe since 2001 when South Africa joined.
    • Japan and South Korea are the only countries in South and southeastern Asia to have Blue Flag beaches.
    • Spain tops the list with 566 such beaches; Greece and France follow with 515 and 395, respectively.

  • India must reject the inequitable climate proposal

    The article takes stock of India’s climate action and the issue of phasing out the use of coal.

    Context

    • The UN Secretary-General called on India to give up coal immediately and reduce emissions by 45% by 2030.

    State of India’s climate action

    • India’s renewable energy programme is ambitious and its energy efficiency programme is delivering, especially in the domestic consumption sector.
    • India is one of the few countries with at least 2° Celsius warming compliant climate action.
    • India is also among one of smaller list of countries on track to fulfilling their Paris Agreement commitments.
    • India’s annual emissions, at 0.5 tonnes per capita, are well below the global average of 1.3 tonnes.
    • In terms of cumulative emissions, India’s contribution by 2017 was only 4% for a population of 1.3 billion.

    How West is performing?

    • While talking about their phasing out of coal, the global North has obscured the reality of its continued dependence on oil and natural gas, both equally fossil fuels, with no timeline for their phaseout.
    • While it is amply clear that their commitments into the future set the world on a path for almost 3°C warming, they have diverted attention by fuzzy talk of “carbon neutrality” by 2050.
    • Environmentalists in developed countries, unable to summon up the domestic political support have turned to pressure the developing countries.
    • All of these are accompanied by increasing appeals to multilateral or First World financial and development institutions to force this agenda on to developing countries.

    Implications of ending coal investment for India

    •  Currently, roughly 2 GW of coal-based generation is being decommissioned per year.
    •  But meeting the 2030 electricity consumption target of 1,580 to 1,660 units per person per year, will require anywhere between 650 GW to 750 GW of renewable energy.
    • Unlike the developed nations, India cannot substitute coal substantially by oil and gas and despite some wind potential, a huge part of this growth needs to come from solar.
    • However, renewables at best can meet residential consumption and some part of the demand from the service sector.
    • Currently, manufacturing growth powered by fossil fuel-based energy is itself a necessity.

    Conclusion

    India must unanimously reject the UN Secretary General’s call and reiterate its long-standing commitment to an equitable response to the challenge of global warming.

  • Species in news: Kalinga Frog

    Indian scientists have reported a first-of-its-kind discovery of morphological phenotypic plasticity (MPP) in the Kalinga cricket frog.

    Try this PYQ:

    Q.Consider the following statements:

    1. Biodiversity hotspots are located only in tropical regions.
    2. India has four biodiversity hotspots i.e., Eastern Himalayas, Western Himalayas, Western Ghats and Andaman and the Nicobar Islands.

    Which of the above statements is/ are correct?

    (a) 1 only

    (b) 2 only

    (c) Both 1 and 2

    (d) Neither 1 nor 2

    Kalinga Frog

    • The Kalinga Frog (Fejervarya Kalinga) was recently identified species which was documented in 2018.
    • The species was encountered several times during field expeditions in the Western Ghats. However, the physical characteristics vary entirely from the known species of Eastern Ghats.
    • However, it has been reported from the central Western Ghats, with the evidence of considerable MPP.
    • It was the only genetic analysis that helped prove that physically different-looking frogs from eastern and western ghats were the same.

    What is MPP?

    • The morphological phenotypic plasticity (MPP) is the ability of an organism to show drastic morphological (physical features) variations in response to natural environmental variations or stimuli.
    • The term “phenotype” refers to the observable physical properties of an organism, which include the organism’s appearance, development, and behaviour.

  • Re-scaling the height of Mt Everest

    China and Nepal are expected to announce the latest official height of Mt. Everest.

    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

    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 – 8,848m – 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.

    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 measured again?

    • Everest’s current official height– 8,848m– has been widely accepted since 1956, when the figure was measured by the Survey of India.
    • 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.

  • Etosha Salt Pan, Namibia

    NASA has recently captured images depicting the wet and dry cycles of Etosha Pan in Africa’s Namibia through the year.

    Try this PYQ:

    Q.Which of the following has/have shrunk immensely/ dried up in the recent past due to human activities?

    1. Aral Sea
    2. Black Sea
    3. Lake Baikal

    Select the correct option using the code given below:

    (a) 1 only

    (b) 2 and 3 only

    (c) 2 only

    (d) 1 and 3 only

    Etosha Salt Pan

    • The Etosha pan is hollow in the ground, wherein water may collect or in which a deposit of salt remains after the water has evaporated.
    • The 120-kilometre-long dry lakebed and its surroundings are protected as Etosha National Park, Namibia’s second-largest wildlife park.
    • The pan is mostly dry, but after a heavy rain, it acquires a thin layer of water that is heavily salted by the mineral deposits on the surface.