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Subject: Climate Change

1. Global Warming and Issues
2. All about Pollution

  • Commission for Air Quality Management in NCR

    The President of India has signed the Commission for Air Quality Management in National Capital Region and Adjoining Areas Ordinance, 2020.

    Try this question from CS Mains 2015:

    Q.Mumbai, Delhi and Kolkata are the three megacities of the country but the air pollution is a much more serious problem in Delhi as compared to the other two. Why is this so?

    About the Ordinance

    • The Ordinance seeks to create an overarching body to consolidate all monitoring bodies and to bring them on one platform so air quality management can be carried out in a more comprehensive, efficient, and time-bound manner.
    • It came within days of the hearing in ‘Aditya Dubey vs Union of India’ in the court of the CJI, where Solicitor General had indicated the setting up of such a Commission.

    Why has the central government set up this Commission?

    • The monitoring and management of air quality in the Delhi NCR region have been done piecemeal by multiple bodies including the Central Pollution Control Board (CPCB) and the adjacent state PCBs and state governments.
    • They, in turn, are monitored by the Environment Ministry, and the Supreme Court itself, which monitors air pollution as per the judgment in ‘M C Mehta vs Union of India’, 1988.

    Consolidating the efforts

    • The Centre seeks to relieve the Supreme Court from having to constantly monitor pollution levels through various pollution-related cases.
    • The body indicates the central government’s push to bring all stakeholders on one platform.
    • This is important because the management of air pollution in Delhi NCR will involve controlling stubble-burning (Agriculture Ministry and state governments), and the control of industrial emissions (Commerce and Industries Ministry), etc.

    About the Commission

    • The Commission, which will be a permanent body, will have over 20 members and will be chaired by a retired official of the level of Secretary to the GoI or Chief Secretary of a state.
    • It will include a representative of the Secretary of the MoEFCC, five Secretary level officers who will be ex officio members and two joint secretary-level officers who will be full-time members.
    • The Commission will also have representation from the CPCB, ISRO, air pollution experts, and three representatives of non-government organisations (NGOs).
    • As associate members, the Commission will have representatives from various other Ministries including the Ministries of Agriculture, Petroleum, Power, Transport, Housing etc.

    Power and functions

    • In matters of air pollution and air quality management, the Commission will supersede all existing bodies.
    • It will have the powers to issue directions to the states.
    • The Commission will also coordinate efforts of state governments to curb air pollution, and will lay down the parameters of air quality for the region.
    • It will have powers to restrict the setting up of industries in vulnerable areas and will be able to conduct site inspections of industrial units.

    Penal powers

    • The Commission will have some penal powers.
    • If its directions are contravened, through say, the setting up of an industrial unit in a restricted area, the Commission will have the power to impose a fine of up to Rs 1 crore and imprisonment of up to 5 years.

    Wasn’t EPCA effective?

    • The one body with powers similar to the new Commission’s was the Environment Pollution (Prevention and Control) Authority (EPCA).
    • It was not a statutory body but drew legitimacy from the Supreme Court, which has been looking at cases of air pollution as part of the judgment in M C Mehta vs Union of India (1988).
    • The EPCA was not, however, supported by a legal framework in the form of a law. It did have the authority to issue fines or directions and guidelines to the governments in other states.

    How is the new commission expected to alter the situation?

    • By forming a new commission, the government has taken the issue of air pollution out of the purview of the judiciary.
    • As per the Ordinance, only NGT, and not civil courts, is authorised to hear cases where the commission is involved.
    • The central government has got itself out of the clutch of Supreme Court and closed down SC-appointed EPCA.

    Challenges ahead

    • The Commission has a large number of members from the central government, which has not gone down well with the states.
    • It is full of officials from the central government. Taking away any say from the state government is not the way to go further.
    • Also, political differences will also now play a part in the functioning of the Commission because states are not happy with the overarching powers being vested in it.

  • In news: Great Barrier Reef

    Australian scientists have found a detached coral reef on the Great Barrier Reef that exceeds the height of the Empire State Building and the Eiffel Tower.

    Try this PYQ:

    Q.Consider the following statements:

    1. Most of the world’s coral reefs are in tropical waters.
    2. More than one-third of the world’s coral reefs are located in the territories of Australia, Indonesia and the Philippines.
    3. Coral reefs host far more number of animal phyla than those hosted by tropical rainforests.

    Which of the above statements is/are correct?

    (a) 1 and 2 only

    (b) 3 only

    (c) 1 and 3 only

    (d) 1 and 3 only

    About Great Barrier Reef

    • The Great Barrier Reef is the world’s largest coral reef system composed of over 2,900 individual reefs and 900 islands.
    • It is stretched for over 2,300 kilometres over an area of approximately 344,400 square kilometres.
    • The reef is located in the Coral Sea, off the coast of Queensland, Australia.
    • It was world heritage listed in 1981 by UNESCO as the most extensive and spectacular coral reef ecosystem on the planet.

    Why it is significant?

    • This is first such discovery in over 100 years.
    • The “blade-like” reef is nearly 500 metres tall and 1.5 kilometres wide.
    • It lies 40 metres below the ocean surface and about six kilometres from the edge of the Great Barrier Reef.

    Tap to read more about:

  • What is Atlantification?

    Scientists have uncovered “hotspots” where some parts of the Barents Sea are starting to more closely resemble the Atlantic. They call this phenomenon “Atlantification”.

    Try this MCQ:

    Q.The Atlantification phenomenon sometimes seen in news is most closely related to which of the following seas/water bodies?

    a) Norwegian Sea

    b) Kara Sea

    c) Barents Sea

    d) Baffin Bay

    What is Atlantification?

    • Streams of warmer water from the Atlantic Ocean flow into the Arctic at the Barents Sea.
    • This warmer, saltier Atlantic water is usually fairly deep under the more buoyant Arctic water at the surface.
    • Lately, however, the Atlantic water has been creeping up. That heat in the Atlantic water is helping to keep ice from forming and melting existing sea ice from below.
    • This process is called “Atlantification”.
    • The ice is now getting hit both from the top by a warming atmosphere and at the bottom by a warming ocean.

    Reasons for it

    • In the background of all of this is global climate change.
    • The Arctic sea ice extent and thickness have been dropping for decades as global temperatures rise.
    • As the Arctic loses ice and the ocean absorbs more solar radiation, global warming is amplified.
    • That affects ocean circulation, weather patterns and Arctic ecosystems spanning the food chain, from phytoplankton all the way to top predators.

  • State of Global Air Report, 2020

    Air pollution now biggest health risk in India, says the State of Global Air 2020 Report.

    State of Global Air Report

    • The State of Global Air report brings into one place the latest information on air quality and health for countries around the globe.
    • It is produced annually by the Health Effects Institute and the Institute for Health Metrics and Evaluation’s Global Burden of Disease project.

    India’s exposure to pollution

    • Long-term exposure to outdoor and household air pollution contributed to over 1.67 million annual deaths from stroke, heart attack, diabetes, lung cancer, chronic lung diseases and neonatal diseases in India in 2019.
    • Overall, air pollution was now the largest risk factor for death among all health risks, the report noted.
    • Outdoor and household particulate matter pollution also contributed to the deaths of more than 1,16,000 Indian infants in their first month of life last year.
    • For the youngest infants, most deaths were related to complications from low birth weight and preterm birth.

    A comparison with peers

    • India faced the highest per capita pollution exposure — or 83.2 ÎŒg/cubic metre — in the world.
    • It is followed by Nepal at 83.1 ÎŒg/cubic metre and Niger at 80.1.
    • Countries with the least population exposure are below 8 micrograms (ÎŒg) per cubic metre.

    Back2Basics: Particulate Matter

    • PM is the term for a mixture of solid particles and liquid droplets found in the air. Some particles, such as dust, dirt, soot, or smoke, are large or dark enough to be seen with the naked eye.
    • Others are so small they can only be detected using an electron microscope.
    • Particle pollution includes:
    1. PM10 : inhalable particles, with diameters that are generally 10 micrometres and smaller; and
    2. PM2.5: fine inhalable particles, with diameters that are generally 2.5 micrometres and smaller.

    Sources of PM

    • These particles come in many sizes and shapes and can be made up of hundreds of different chemicals.
    • Some are emitted directly from a source, such as construction sites, unpaved roads, fields, smokestacks or fires.
    • Most particles form in the atmosphere as a result of complex reactions of chemicals such as sulfur dioxide and nitrogen oxides, which are pollutants emitted from power plants, industries and automobiles.

    Harmful effects of PM

    • Particulate matter contains microscopic solids or liquid droplets that are so small that they can be inhaled and cause serious health problems.
    • Some particles less than 10 micrometres in diameter can get deep into your lungs and some may even get into your bloodstream.
    • Of these, particles less than 2.5 micrometres in diameter, also known as fine particles or PM2.5, pose the greatest risk to health.

  • 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.

  • 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.

  • [pib] Climate Smart Cities Assessment Framework (CSCAF 2.0)

    The Ministry of Housing and Urban Affairs has launched the Climate Smart Cities Assessment Framework (CSCAF) 2.0.

    About CSCAF 2.0

    • A framework is a climate-sensitive approach to urban planning and development in India.
    • ​It was developed after a review of existing frameworks and assessment approaches adopted throughout the world.
    • It followed a series of an extensive consultative process with more than 26 organizations and 60 experts from different thematic areas.
    • The Climate Centre for Cities under National Institute of Urban Affairs (NIUA) is supporting MoHUA in implementation of CSCAF.

    Various indicators of the framework

    The framework has 28 indicators across five categories namely:

    1. Energy and Green Buildings
    2. Urban Planning, Green Cover & Biodiversity
    3. Mobility and Air Quality
    4. Water Management
    5. Waste Management

  • Green Term Ahead Market (GTAM)

    As a first step towards Greening the Indian short term power market, the  Ministry of Power and New & Renewable Energy (MNRE) has launched pan-India Green Term Ahead Market (GTAM) in electricity.

    About GTAM

    • GTAM is an alternative new model introduced for selling off the power by the renewable developers in the open market without getting into long term PPAs.
    • This would promote RE merchant capacity addition and help in achieving RE capacity addition targets of the country.

    Benefits of GTAM

    • It would lessen the burden on the RE-rich States and incentivize them to develop RE capacity beyond their own RPO.
    • It will benefit buyers of RE through competitive prices and transparent and flexible procurement. It will also benefit RE sellers by providing access to the pan- India market

    Key features

    • Transactions through GTAM will be bilateral in nature with clear identification of corresponding buyers and sellers, there will not be any difficulty in accounting for RPO.
    • GTAM contracts will be segregated into Solar RPO & Non-Solar RPO as RPO targets are also segregated.
    • Further, within the two segments, GTAM contracts will have Green Intraday, Day Ahead Contingency, Daily and Weekly Contracts
    • Green Intraday Contract & Day Ahead Contingency Contract – Bidding will take place on a 15-minute time-block wise MW basis.
    • Daily & Weekly Contracts – Bidding will take place on an MWh basis.
    • Price discovery will take place on a continuous basis i.e. price-time priority basis. Subsequently, looking at the market conditions open auction can be introduced for daily & weekly contracts.
    • Energy scheduled through GTAM contract shall be considered as deemed RPO compliance of the buyer.

  • Death Valley records the highest temperature on Earth

    California’s Death Valley registered a temperature of 54.4 degrees Celsius or 129.9 degrees Fahrenheit on August 16, 2020, which, once verified, could be the hottest temperature ever recorded on Earth.

    Some years back, there was a question in the mains:

    Major hot deserts in the northern hemisphere are located between 20-30 degree north and on the western side of the continents. Why?

    Death Valley and its location

    • Death Valley is a desert valley in Eastern California, in the northern Mojave Desert, bordering the Great Basin Desert.
    • It is one of the hottest places on Earth, along with deserts in the Middle East and the Sahara.
    • The valley is extremely dry because it lies in the rain shadow of four major mountain ranges (including the Sierra Nevada and the Panamint Range).
    • Moisture moving inland from the Pacific Ocean must pass eastward over the mountains to reach Death Valley; as air masses are forced upward by each range, they cool and moisture condenses, to fall as rain or snow on the western slopes.
    • When the air masses reach Death Valley, most of the moisture has already been lost and there is little left to fall as precipitation.

    Key factors leading to its high temperature

    • Solar heating: The valley’s surface (consisting of soil, rocks, sand, etc.) undergoes intense solar heating because the air is clear and dry, and the land is dark and sparsely vegetated. This is especially noticeable in summer when the sun is nearly directly overhead.
    • Trapping of warm air: Warm air naturally rises and cools; in Death Valley, this air is subject to continual reheating as it is trapped by high, steep valley walls and recycled back to the valley floor.
    • Migration of warm air from other areas (advection): Warm desert regions adjacent to Death Valley, especially to the south and east, often heat air before it arrives in Death Valley.
    • Warm mountain winds: As winds are forced up and over mountains (e.g., the numerous ranges west of Death Valley), the winds can be warmed in several ways. The resulting dry, warm winds are known as foehn winds.

  • Mapping: Mont Blanc

    The melting Mont Blanc glacier in the French Alps yielded a clutch of newspapers with banner headlines from when Indira Gandhi became India’s first and so far only woman Prime Minister in 1966.

    Try this MCQ

    Q.The Mont Blanc in the Alps can be located near the conflux of which of the following two countries?

    a)France and Spain

    b)France and Italy

    c)Spain and Italy

    d)Greece and Slovenia

    Mont Blanc

    • Mont Blanc is the second-highest mountain in Europe after Mount Elbrus. It is the highest mountain in the Alps and Western Europe.
    • It rises 4,808 m above sea level and is ranked 11th in the world in topographic prominence.
    • The mountain stands in a range called the Graian Alps, between the regions of Aosta Valley, Italy, and Savoie and Haute-Savoie, France.
    • It is the tallest peak in the Alps and the highest summit in Western Europe, hence its epithet the “Roof of Europe”.