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Subject: Environment

  • Places in news: Mount Sinabung

    Indonesia’s Mount Sinabung volcano sent a cloud of hot ash as high as 3 km today, in its first big eruption since August last year.

    Mount Sinabung

    • It is a Pleistocene-to-Holocene stratovolcano in the Karo plateau of Karo Regency, North Sumatra, Indonesia.
    • It is created by the subduction of the Indo-Australian Plate under the Eurasian Plate.
    • It erupted in 2010 after a 400-year-long hiatus and has been continuously active since September 2013.

    Why frequent eruptions?

    • Indonesia straddles the “Pacific ring of fire” with nearly130 active volcanoes, more than any other country.
    • Sinabung had been inactive for centuries before it erupted again in 2010.

    Try this PYQ:

    Q.Consider the following statements:

    1. The Barren Island volcano is an active volcano located in the Indian Territory.
    2. Barren Island lies about 140 km east of Great Nicobar
    3. The last time the Barren Island volcano erupted was in 1991 and it has remained inactive since then.

    Which of the statements given above is/are correct? (CSP 2018)

    (a) 1 only

    (b) 2 and 3 only

    (c) 3 only

    (d) 1 and 3

    What is the Pacific ring of fire?

    • The Pacific Ring of Fire is a region around much of the rim of the Pacific Ocean where many volcanic eruptions and earthquakes occur.
    • It includes the Pacific coasts of South America, North America and Kamchatka, and some islands in the western Pacific Ocean.
    • It is a direct result of plate tectonics: specifically the movement, collision and destruction of lithospheric plates under and around the Pacific Ocean.
    • The collisions have created a nearly continuous series of subduction zones, where volcanoes are created and earthquakes occur.

  • Lessons from Uttarakhand and Texas

    The article deals with the common threads running through the recent flash floods in Uttarakhand and the severe cold that snapped the power grid in Texas.

    Time-bound net zero carbon target

    • Most governments and corporates are in agreement over what needs to be done to reach the target of net-zero carbon emission target. Which include:
    • Fossil fuels must be steadily but inexorably replaced by clean energy electricity should be increasingly generated from solar and wind.
    • Transport should switch from internal combustion engines to electric vehicles.
    • Energy demand should be conserved and more efficiently consumed.
    • Technology and innovation must remain the centrepiece of all activities.
    • Governments and corporates have also to agree on removing the legacy obstacles that lie on the pathway.

    3 Legacy obstacles need to be removed

    • Two events last month will explain better the reasons for this concern.
    • A chunk of the Nanda Devi broke off and triggered flash floods downstream that then washed away or damaged several hydroelectric dams and led to the loss of hundreds of lives
    • A severe cold snap crashed the electricity grid system in Texas, plunging a wide swathe of the state into darkness.
    • These two events were unrelated, other than possibly by the link of climate change, but on examination of the reasons for the consequential material and human misery, they offer common insight.

    1) Poorly designed planing system

    • In both cases, the authorities were caught unprepared. This is despite the fact that there had been precedents.
    • One reason for this lack of preparedness could be the presumption, based on historical data.
    • The lesson is that whilst the past is a useful guidepost, it is an imperfect one especially in view of the spate of natural disasters across the world in recent times, and that planners should be cautious about linear extrapolations.
    • Certainly, for the journey of decarbonisation, there is little of the distant past for them to hang onto.

    2) Siloed and fragmented physical and regulatory oversight mechanisms

    • The tragedy in Uttarakhand reflected the costs of institutional fragmentation and lack of coordination in decision making.
    • The suggestions made in the aftermath of the Kedarnath flooding regarding land use and watershed management and the best means of securing an optimal balance between construction and the Himalayan ecology.
    • But the suggestion had not been implemented in large part because energy is a concurrent subject and there is no one ministerial or regulatory body responsible for this domain.
    • Further, these recommendations required the coming together of various non-energy ministries which, given the current vertically siloed structures of responsibility and accountability in our system, did not happen.
    • The glacial burst may have been beyond anyone’s control; the consequential downstream damage was avoidable. 

    3) The lack of investment in energy infrastructure

    • One reason why solar and wind did not pick up the power slack in Texas was because the grid was not resilient enough to absorb the surge in the flow of intermittent renewable electrons.
    • India’s transmission system is not capable of managing the energy transition.
    • This problem will clearly have to be addressed if decarbonisation is to proceed smoothly.
    • But to do so, many issues will have to be resolved.
    • Not least, how much will it cost to upgrade the infrastructure? How will it be financed?
    • Who will take the lead on driving this change e?
    • Questions that are easier to set out than answer.

    Way forward

    • To ensure that decarbonisation translates into effective action on the ground, policymakers will have to build structures that reflect the woven, multidimensional, interdependent and interconnected nature of the energy ecosystem.
    • This means creating mechanisms that facilitate inter-ministerial and inter-state collaboration within the country and multilateral cooperation internationally.

    Consider the question “There are legacy obstacles in the road to decarbonisation. What are these obstacles and suggest the pathway to remove these obstacles?” 

    Conclusion

    In order to achieve the targets on carbon emission, India needs to draw on these lessons and build robust systems, regulatory mechanisms and facilitate investment in the creation of resilient energy infrastructure.

  • What is Stockholm+50?

    Stockholm+50 is a high-level meeting that the Government of Sweden plans to hold in conjunction with the 50th anniversary of the first UN conference on the human environment – the 1972 Stockholm Conference.

    The 1972 Stockholm Conference

    • The UN Conference on the Human Environment, also known as the Stockholm Conference, was the first UN conference on the environment and was held between 5 and 16 June 1972 in Stockholm.
    • The meeting’s outcome document – the Stockholm Declaration – included several principles that are still important for environmental management.
    • Another result of the meeting was the establishment of the United Nations Environment Programme (UNEP) and the World Environment Day, held annually on 5 June.

    Try this PYQ:

    Q.The United Nations Framework Convention on Climate Change (UNFCCC) is an international treaty drawn at:

    (a) United Nations Conference on the Human Environment, Stockholm, 1972

    (b) UN Conference on Environment and Development, Rio de Janeiro, 1992

    (c) World Summit on Sustainable Development, Johannesburg, 2002

    (d) UN Climate Change Conference, Copenhagen, 2009

    Background

    • It’s been a generation since global leaders met in Stockholm in 1972 to discuss environmental challenges.
    • Then the concerns were for the local environment; there was no talk of climate change or even the depletion of the ozone layer.
    • All that came later. In 1972, the discussion was on the toxification of the environment as water and air were foul.

    Progress for 50 years

    • The toxification of the environment is still a pressing concern; countries have indeed cleaned up locally but added to the emissions in the global atmosphere.
    • Now, we are out of time as climate change impacts are spiralling out of control.

    Perils of Ecological Globalization

    • The fact is we stitched up the global ecological framework in terms of the many agreements only.
    • During this time, we also signed another agreement on free-trade — the economic globalisation agreement.
    • But we never really understood how these two frameworks — ecological and economic globalisation — would counteract each other.
    • As a result, we have worked to build an economic model based on discounting the price of labour and of the environment.

    Expectations from Stockholm+50

    • The aim of Stockholm+50 is to contribute to concrete action.
    • It aims at leveraging sustainable consumption and production patterns and nature-based solutions in order to achieve climate-neutral, resilient, circular and inclusive economies.
    • The narrative and result will be further developed together with interested governments and other partners.

  • Species in news: Caracal

    The National Board for Wildlife (NBWL) and MoEFCC last month included the caracal, a medium-sized wildcat found in parts of Rajasthan and Gujarat, in the list of critically endangered species under the Species Recovery Programme.

    Caracal in India

    IUCN status: Least Concerned

    • The wildcat has long legs, a short face, long canine teeth, and distinctive ears — long and pointy, with tufts of black hair at their tips.
    • The iconic ears are what give the animal its name — caracal comes from the Turkish karakulak, meaning ‘black ears’.
    • In India, it is called siya gosh, a Persian name that translates as ‘black Ear’.
    • A Sanskrit fable exists about a small wild cat named deergha-karn or ‘long-eared’.
    • While it flourishes in parts of Africa, its numbers in Asia are declining.

    Try this PYQ:

    Q.Consider the following pairs:

    Wildlife:  Naturally found in

    1. Blue-finned Mahseer: Cauvery River
    2. Irrawaddy Dolphin: Chambal River
    3. Rusty-spotted Cat: Eastern Ghats

    Which of the pairs given above are correctly matched? (CSP 2018)

    (a) 1 and 2 only

    (b) 2 and 3 only

    (c) 1 and 3 only

    (d) 1, 2 and 3

    In history and myth

    • The earliest evidence of the caracal in the subcontinent comes from a fossil dating back to the civilization of the Indus Valley c. 3000-2000 BC.
    • The caracal has traditionally been valued for its litheness and extraordinary ability to catch birds in flight; it was a favourite coursing or hunting animal in medieval India.
    • Firuz Shah Tughlaq (1351-88) had siyah-goshdar khana, stables that housed large numbers of coursing caracal.
    • It finds mention in Abul Fazl’s Akbarnama, like a hunting animal in the time of Akbar (1556-1605).
    • Descriptions and illustrations of the caracal can be found in medieval texts such as the Anvar-i-Suhayli, Tutinama, Khamsa-e-Nizami, and Shahnameh.
    • The East India Company’s Robert Clive is said to have been presented with a caracal after he defeated Siraj-ud-daullah in the Battle of Plassey (1757).

    Back2Basics: Species Recovery Programme of NBWL

    • The programme is one of the three components of the centrally funded scheme, Integrated Development of Wildlife Habitats (IDWH).
    • Started in 2008-09, IDWH is meant for providing support to protected areas, protection of wildlife outside protected areas and recovery programmes for saving critically endangered species and habitats.
    • So far, the recovery programme for critically endangered species in India now includes 22 wildlife species.
    • The NBWL in 2018 has added four species- the Northern River Terrapin, Clouded Leopard, Arabian Sea Humpback Whale, Red Panda- to the list.
    • Other species include the Snow Leopard, Bustard (including Floricans), Dolphin, Hangul, Nilgiri Tahr, Marine Turtles, Dugongs, Edible Nest Swiftlet, Asian Wild Buffalo, Nicobar Megapode, Manipur Brow-antlered Deer, Vultures, Malabar Civet, Indian Rhinoceros, Asiatic Lion, Swamp Deer and Jerdon’s Courser.

  • Places in news: Lake Chad

    One of Africa’s largest freshwater bodies, Lake Chad, has shrunk by 90 per cent.

    Try this PYQ from CSP 2018:

    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 answer using the code given below:

    (a) 1 only

    (b) 2 and 3

    (c) 2 only

    (d) 1 and 3

    Lake Chad

    • Lake Chad in the Sahel spans the countries of Nigeria, Niger, Chad and Cameroon and is home to 17.4 million people.
    • It is blessed with rich aquatic and terrestrial biodiversity.
    • The Chari River, fed by its tributary the Logone, provides over 90% of the lake’s water, with a small amount coming from the Yobe River in Nigeria/Niger.
    • Despite high levels of evaporation, the lake is freshwater.
    • The Lake Chad basin comprises biosphere reserves, World Heritage and Ramsar sites as well as wetlands of international conservation importance.

    Why it is significant?

    • For years, the lake has been supporting drinking water, irrigation, fishing, livestock and economic activity for over 30 million people in the region.
    • It is vital for indigenous, pastoral and farming communities in one of the world’s poorest countries.
    • However, climate change has fuelled a massive environmental and humanitarian crisis.
    • The United Nations has termed the Lake Chad crisis as “one of the worst in the world”.

    A looming peril

    • The lake has shrunk 90 per cent over the last 60 years since the chronic droughts surged at the beginning of the 1970s.
    • The surface area of the lake was 26,000 square kilometres in 1963; it has now reduced to less than 1,500 square kilometres.
    • Its population is exploding and the region has been ripped apart from conflict at an unprecedented scale.

    Behind all crises

    • The ever-changing climate has dramatically worsened the situation, amplifying food and nutritional insecurity in the region.
    • Temperature is rising one-and-a-half times faster than the global average. The seasonal and inter-rainfall patterns have been drastically changing each year.
    • This has triggered food insecurity, ultimately pushing communities into the arms of terrorist groups.
    • Boko Haram is one of the top insurgent groups with a strong foothold in the region.

  • Carbon Watch: India’s first app to assess one’s carbon footprint

    Chandigarh became the first state or UT in India to launch Carbon Watch, a mobile application to assess the carbon footprint of an individual.

    Carbon Footprint

    • A carbon footprint is the total greenhouse gas (GHG) emissions caused by an individual, event, organization, service, or product, expressed as carbon dioxide equivalent.
    • It corresponds to the whole amount of greenhouse gases (GHG) produced to, directly and indirectly; support a person’s lifestyle and activities.
    • Carbon footprints are usually measured in equivalent tons of CO2, during the period of a year, and they can be associated with an individual, an organization, a product or an event, among others.
    • The GHGs whose sum results in a carbon footprint can come from the production and consumption of fossil fuels, food, manufactured goods, materials, roads or transportation.

    Note: An ecological footprint, as explained earlier compares the total resources people consume with the land and water area that is needed to replace those resources. A carbon footprint also deals with resource usage but focuses strictly on the greenhouse gases released due to burning of fossil fuels.

    How does the app Carbon Watch work?

    • As a person downloads the application, they will need to fill details in four parts — Water, Energy, Waste Generation and Transport (Vehicular movement).
    • In the category of Water, the person will be required to inform about the consumption of water.
    • In the Energy category, the details regarding the electricity units consumed every month at the house, monthly bill etc and usage of solar energy will have to be furnished.
    • In the Waste category, the individual will need to inform about the waste generated on their part and their family.
    • In the transport section, the individual will have to inform about the mode of transport used by four-wheeler, two-wheeler or bicycle.

    Try this PYQ:

    As a result of their annual survey, the National Geographic Society and an international polling firm GlobeScan gave India top rank in Greendex 2009 score. What is this score?

    (a) It is a measure of efforts made by different countries in adopting technologies for reducing the carbon footprint

    (b) It is a measure of environmentally sustainable consumer behavior in different countries

    (c) It is an assessment of programs/schemes undertaken by different countries for improving the conservation of natural resources

    (d) It is an index showing the volume of carbon credits sold by different countries

  • What is Laschamp Excursion?

    This newscard is an excerpt from the original article published in DownToEarth.

    The world experienced a few centuries of apocalyptic conditions 42,000 years ago, triggered by a reversal of the Earth’s magnetic poles combined with changes in the Sun’s behaviour. This event is called as Laschamps Excursion.

    Try this PYQ from CSP 2018:

    Q.The term “sixth mass extinction/sixth extinction” is often mentioned in the news in the context of the discussion of

    (a) Widespread monoculture Practices agriculture and large-scale commercial farming with indiscriminate use of chemicals in many parts of the world that may result in the loss of good native ecosystems.

    (b) Fears of a possible collision of a meteorite with the Earth in the near future in the manner it happened 65million years ago that caused the mass extinction of many species including those of dinosaurs.

    (c) Large scale cultivation of genetically modified crops in many parts of the world and promoting their cultivationin other Parts of the world which may cause the disappearance of good native crop plants and the loss offood biodiversity.

    (d) Mankind’s over-exploitation/misuse of natural resources, fragmentation/loss, natural habitats, destructionof ecosystems, pollution and global climate change.

    Laschamp Excursion

    • The Laschamp event was a geomagnetic excursion (a short reversal of the Earth’s magnetic field). It occurred 41,400 years ago, during the end of the Last Glacial Period.
    • This event is named after the village where it was discovered in the French Massif Central.
    • It led to series of catastrophic events like the ozone layer was destroyed, electrical storms raged across the tropics, solar winds generated spectacular light shows (auroras), Arctic air poured across North America, ice sheets and glaciers surged and weather patterns shifted violently.
    • During these events, life on earth was exposed to intense ultraviolet light, Neanderthals and giant animals known as megafauna went extinct, while modern humans sought protection in caves.

    The Adams Event

    • This last major geomagnetic reversal triggered a series of dramatic events that have far-reaching consequences for our planet.
    • Because of the coincidence of seemingly random cosmic events and the extreme environmental changes found around the world 42,000 years ago, researchers have called this period the “Adams Event”.

  • Mawsynram: Wettest place on Earth sees a decreasing trend in rainfall

    A recent study that looked at the rainfall pattern in the past 119 years found a decreasing trend at Cherrapunji and nearby areas.

    Try this PYQ:

    Q.“Climate is extreme, rainfall is scanty and the people used to be nomadic herders.” The above statement best describes which of the following regions?

    (a) African Savannah

    (b) Central Asian Steppe

    (c) North American Prairie

    (d) Siberian Tundra

    Mawsynram

    • Mawsynram is a town in the East Khasi Hills district of Meghalaya state in northeastern India, 60.9 kilometres from Shillong.
    • Mawsynram receives the highest rainfall in India.
    • It is reportedly the wettest place on Earth, with an average annual rainfall of 11,872mm but that claim is disputed.
    • According to the Guinness Book of World Records, Mawsynram received 26,000 millimetres (1,000 in) of rainfall in 1985.

    Why it rain highest in Mawsynram?

    • Because of the uneven relief of India due to the presence of a number of hill ranges, the monsoon is not able to shed its moisture evenly over India.
    • Windward sides receive more rainfall and leeward sides receive less rainfall.
    • Mawsynram lies in the funnel-shaped depression caused by the Khasi range in Meghalaya.
    • The Bay of Bengal branch of monsoons is trapped in it and causes heavy rainfall.

    Decreasing rainfall trends

    • The research analysed daily rain gauge measurements during 1901–2019 and noted that the changes in the Indian Ocean temperature have a huge effect on the rainfall in the region.
    • There was a reduction in the vegetation area in northeast India in the past two decades, implying that human influence also plays an important role in the changing rainfall patterns.
    • The traditional way of cultivation known as Jhum cultivation or shifting cultivation is now decreased and being replaced by other methods.
    • Also, previous studies have noted there is sizable deforestation in the region.

  • India Inc must follow global example, take affirmative action on climate change

    The article explains the global trend in investors and lendors are demanding companies to recognise their impact on environment and act on it.

    Accountability on climate change: global trend

    • There is a wave of investors pushing large corporations from across sectors, to recognise their carbon footprint and take affirmative action.
    • Aviva, the British insurance company announced it would divest stock and bond holdings in 30 of the biggest corporate emitters of carbon, if their boards failed to take affirmative action over climate change.
    • MPs in the United Kingdom called on the Bank of England to ratchet up environment standards in its pandemic stabilising, corporate bond programme.
    • Swedbank AB, Sweden’s biggest mortgage bank, has taken a decision not to provide fresh loans to new oil and gas projects.

    Companies realising social and environmental impacts

    • Several large and growing companies, especially in Europe, are realising their social and environmental impacts and making it a boardroom agenda even without investor guns on their heads.
    • Schneider Electric, the energy management and automation company, has embedded environmental, social and governance (ESG) considerations into every facet of its activities.
    •  The company climbed from 29th to number 1 rank in the 2021 Global 100 ranking in the Corporate Knights index of the world’s most sustainable companies.
    • Only one company from India, Tech Mahindra, has made it to the world’s 100 most sustainable list.

    Indian scenario

    • Indian institutional lenders and investors are simply not demanding enough on sustainability.
    • A majority of Indian companies are only meeting compliance norms set out by various state or city authorities.
    • Rarely do they go beyond rule-based compliances and implement environment, social and governance or ESG goals with purpose and passion like their European counterparts.

    Way forward

    • SEBI is putting the final touches on the Business Responsibility and Environment Reporting (BRSR) guidelines.
    • The new ESG reporting norm will apply to the top 1,000 listed companies on Indian exchanges.
    • Under BRSR reporting guidelines, companies will have to declare their R&D spends on improving environmental and social outcomes. 
    • They will have to disclose energy and water consumed to turnover ratios, and the percentage of recycled or reused input materials, among many other social and governance disclosures such as CSR, employee skilling and gender diversity.
    • It’s time for lending institutions and investors to align with SEBI and use their muscle to drive a deeper change.

    Consider the question “Indian institutional lenders and investors are  not demanding enough on sustainability from the companies. Rarely do they go beyond rule-based compliances and implement environment, social and governance or ESG goals with purpose and passion like their European counterparts. In light of this, suggest the measures to nudge the businesseses to act on their environmental responsibilities.” 

    Conclusion

    Stepping up green standards to meet Paris Climate Agreement goals cannot be the government’s responsibility alone. Businesses must be part of the movement, or the target of containing global warming to less than 1.5 degrees of pre-industrial levels, will remain elusive.

  • 54,000 lives lost in Delhi due to air pollution

    Air pollution claimed approximately 54,000 lives in Delhi in 2020, according to a Greenpeace Southeast Asia analysis of the cost to the economy due to air pollution.

    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?

    Deaths due to Air Pollution

    • Globally, approximately 1,60,000 deaths have been attributed to PM 2.5 air pollution in the five most populous cities — Delhi, Mexico City, Sao Paulo, Shanghai and Tokyo.
    • Six Indian cities — Delhi, Mumbai, Bengaluru, Chennai, Hyderabad and Lucknow — feature in the global analysis.
    • An estimated 25,000 avoidable deaths in Mumbai in 2020 have been attributed to air pollution.
    • Bengaluru, Chennai and Hyderabad estimated an approximate 12,000, 11,000, and 11,000 avoidable deaths respectively due to polluted air.

    The ‘Cost Estimator’

    • The ‘Cost Estimator’, an online tool that estimates the real-time health impact and economic cost from fine particulate matter (PM 2.5) air pollution in major world cities.
    • It was deployed in collaboration between Greenpeace Southeast Asia, IQAir and the Centre for Research on Energy and Clean Air (CREA).
    • Using real-time ground-level PM 2.5 measurements collated in IQAir’s database, the algorithm applies scientific risk models in combination with population and public health data.

    Computing the “Lost Years”

    • To show the impact of air pollution-related deaths on the economy, the approach used by Greenpeace is called ‘willingness-to-pay.
    • It refers to a lost life year or a year lived with a disability is converted to money by the amount that people are willing to pay in order to avoid this negative outcome.
    • The cost estimator also sustained the estimated air pollution-related economic losses of ₹1,23,65,15,40,000.

    Greenpeace recommends-

    • Despite a temporary reprieve in air quality owing to the lockdown, the latest figures from the report underscore the need to act immediately.
    • The need of the hour is to rapidly scale up renewable energy, bring an end to fossil fuel emissions and boost sustainable and accessible transport systems.