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Subject: Environment

  • Glacier melting in Hindu Kush Himalayas

    Up to two billion people in southeast Asia can face food and water shortages even as the Hindu Kush Himalayan (HKH) mountain ranges lose up to two-thirds of its ice by 2100, a United Nations-backed research flagged.

    Hindu Kush Himalayas

    • The HKH region, often referred to as the ‘Third Pole’, is spread over 3,500 square kilometers across eight countries including India, Nepal, and China.
    • The range forms the western section of the Hindu Kush Himalayan Region (HKH) and is the westernmost extension of the Pamir Mountains, the Karakoram, and the Himalayas.
    • It divides the valley of the Amu Darya (the ancient Oxus) to the north from the Indus River valley to the south.
    • It contains the world’s third-largest storage of frozen water after the Antarctica and Arctic.
    • Over 240 million people live in the region’s mountains; 1.7 billion live in the river basins downstream, while food grown in these basins reaches three billion people.

    Continuous warming

    • HKH region continues to warm through 21st century even if the world was able to limit global warming at the agreed 1.5 degrees Celsius.
    • Another study published in 2019 on the ice thickness of glaciers had estimated that glaciers in the HKH may contain 27 percent less ice than previously suggested.
    • The HKH region lies downwind from some of the most heavily polluted places on Earth. This threatens agriculture, climate as well as monsoon patterns.

  • Dihing Patkai is Assam’s 7th National Park

    The Assam government has notified Dihing Patkai as a National Park, four days after creating the 422-sq. km Raimona National Park in western Assam’s Kokrajhar district.

    Dihing Patkai NP

    • Dihing Patkai, in focus a year ago for illegal coal mining in the vicinity, encompasses the erstwhile Dehing Patkai Wildlife Sanctuary, the Jeypore Reserve Forest and the western block of the Upper Dihing Reserve Forest.
    • The 234.26-sq. km Dihing Patkai straddling eastern Assam’s Dibrugarh and Tinsukia districts is a major elephant habitat and 310 species of butterflies have been recorded there.
    • The park has 47 species each of reptiles and mammals, including the tiger and clouded leopard.

    Answer this PYQ in the comment box:

    Q.Which one of the following National Parks has a climate that varies from tropical to subtropical, temperate and arctic?

    (a) Khangchendzonga National Park

    (b) Nandadevi National Park

    (c) Neora Valley National Park

    (d) Namdapha National Park

    NPs in Assam

    • Assam now has the third most National Parks after the 12 in Madhya Pradesh and nine in the Andaman and Nicobar Islands.
    • The five older National Parks in the State are Kaziranga, Manas, Nameri, Orang and Dibru-Saikhowa.
    • Kaziranga and Manas are UNESCO World Heritage Sites.
    • They are also tiger reserves along with Nameri and Orang.

  • Degradation of Aravalis

    The Supreme Court has ordered the Haryana government to take “all essential measures” to remove encroachments, including some residential constructions, in the ecologically fragile Aravali forest land near a village.

    Aravali Range

    • The Aravali is a mountain range in Northwestern India, running approximately 670 km in a southwest direction, starting near Delhi, passing through southern Haryana and Rajasthan, and ending in Gujarat.
    • The highest peak is Guru Shikhar at 1,722 meters.
    • The Aravalli Range, an eroded stub of ancient mountains, is the oldest range of fold mountains in India.
    • The natural history of the Aravalli Range dates back to times when the Indian Plate was separated from the Eurasian Plate by an ocean.
    • Three major rivers and their tributaries flow from the Aravalli, namely Banas and Sahibi rivers which are tributaries of Yamuna, as well as Luni River which flows into the Rann of Kutch.
    • The Sariska-Delhi leopard wildlife corridor is a 200 km long important biodiversity and wildlife corridor which runs from the Sariska Tiger Reserve in Rajasthan to Delhi Ridge.

    Threats to its existence

    • Ecological degradation in the Aravalli region is in an alarming situation.
    • This is due to the increasing population of humans and cattle, injudicious use of natural resources, unscientific mining, uncontrolled grazing, and felling of trees.

    Answer this PYQ in the comment box:

    Q.With reference to the river Luni, which one of the following statements is correct?

    (a) It fl ows into Gulf of Khambhat

    (b) It fl ows into Gulf of Kuchchh

    (c) It fl ows into Pakistan and merges with a tributary of Indus

    (d) It is lost in the marshy land of the Rann of Kuchchh

  • [pib] Sustainable Public Procurement (SPP)

    On the occasion of World Environment Day, a new product category of Green Room Air Conditioners was launched on the Government e-Marketplace (GeM) under the Sustainable Public Procurement (SPP) program.

    What is Sustainable Public Procurement (SPP)?

    • SPP is a process by which public authorities seek to achieve the appropriate balance between the three pillars of sustainable development – economic, social and environmental – when procuring goods, services or works at all stages of the project.
    • These three pillars are called Triple Bottom Line.
    • The UN Environment Programme (UNEP) has been active in the promotion of Sustainable Public Procurement at national, regional and global levels since 2005.

    Why need SPP?

    • Public procurement spend in India is nearly 15-20% of its GDP.
    • Introducing SPP to this huge quantum of government procurement will further complement the country’s climate policy objectives.
    • This innovation can provide financial savings for government buyers and will meet evolving environmental challenges by moving towards a circular economy.

    Back2Basics: Government E-Marketplace

    • The GeM is a one-stop National Public Procurement Portal to facilitate online procurement of common use Goods & Services required by various Government Departments / Organizations / PSUs.
    • It was launched in 2016 to bring transparency and efficiency in the government buying process.
    • GEM aims to enhance transparency, efficiency and speed in public procurement.
    • It is a completely paperless, cashless and system driven e-marketplace that enables procurement of common use goods and services with minimal human interface.
    • It provides the tools of e-bidding, reverse e-auction and demand aggregation to facilitate the government users to achieve the best value for their money.
    • The purchases through GeM by Government users have been authorized and made mandatory by the Ministry of Finance by adding a new Rule No. 149 in the General Financial Rules, 2017.
    • It has been developed by Directorate General of Supplies and Disposals (Ministry of Commerce and Industry) with technical support of National e-governance Division (MEITy).

  • ‘Sea Snot’ outbreak in Turkey

    There has been growing environmental concern in Turkey over the accumulation of ‘sea snot’, a slimy layer of grey or green sludge in the country’s seas, which can cause considerable damage to the marine ecosystem.

    What is ‘Sea Snot’?

    • ‘Sea snot’ is marine mucilage that is formed when algae are overloaded with nutrients as a result of water pollution combined with the effects of climate change.
    • A ‘sea snot’ outbreak was first recorded in the country in 2007. Back then, it was also spotted in the Aegean Sea near Greece.
    • But the current outbreak in the Sea of Marmara is by far the biggest in the country’s history.
    • The nutrient overload occurs when algae feast on warm weather caused by global warming. Water pollution adds to the problem.
    • Environmental experts have said that the overproduction of phytoplankton caused by climate change and the uncontrolled dumping of household and industrial waste into the seas has led to the present crisis.

    Where has it been found?

    • Turkey’s Sea of Marmara, which connects the Black Sea to the Aegean Sea, has witnessed the largest outbreak of ‘sea snot’.
    • The sludge has also been spotted in the adjoining Black and Aegean seas.

    How badly can the crisis affect the marine ecosystem?

    • The growth of the mucilage, which floats upon the surface of the sea like brown phlegm, is posing a severe threat to the marine ecosystem of the country.
    • Divers have said that it has caused mass deaths among the fish population, and also killed other aquatic organisms such as corals and sponges.
    • The mucilage is now covering the surface of the sea and has also spread to 80-100 feet below the surface.
    • If unchecked, this can collapse to the bottom and cover the sea floor, causing major damage to the marine ecosystem.
    • Over a period of time, it could end up poisoning all aquatic life, including fishes, crabs, oysters, mussels and sea stars.

  • Anti-hail guns to mitigate hailstorms crop damage

    To help out horticulturists who face crop damage due to hailstorms, the Himachal Pradesh government will be testing the use of indigenously developed ‘anti-hail guns’.

    What are anti-hail guns?

    • An anti-hail gun is a machine that generates shock waves to disrupt the growth of hailstones in clouds, according to its makers.
    • It comprises a tall, fixed structure somewhat resembling an inverted tower, several metres high, with a long and narrow cone opening towards the sky.
    • The gun is “fired” by feeding an explosive mixture of acetylene gas and air into its lower chamber, which releases a shock wave (waves that travel faster than the speed of sound, such as those produced by supersonic aircraft).
    • These shock waves supposedly stop water droplets in clouds from turning into hailstones, so that they fall simply as raindrops.

    Answer this PYQ in the comment box:

    Q.During a thunderstorm, the thunder in the skies is produced by the

    1. meeting of cumulonimbus clouds in the sky
    2. lightning that separates the nimbus clouds
    3. violent upward movement of air and water particles

    Select the correct option using the codes given below:

    (a) 1 only

    (b) 2 and 3 only

    (c) 1 and 3 only

    (d) None of the above

    How do they ‘prevent’ a hailstorm?

    • It is this hail formation process that the shock waves from anti-hail guns try to disrupt in a radius of 500 meters, so that the water droplets fall down before they can be lifted by the updrafts.
    • The machine is repeatedly fired every few seconds during an approaching thunderstorm.
    • However, the effectiveness of anti-hail guns has remained a contentious issue.

    How do Hailstorms occur?

    • Hail is produced by cumulonimbus clouds, which are generally large and dark and may cause thunder and lightning.
    • In such clouds, winds can blow up the water droplets to heights where they freeze into ice.
    • The frozen droplets begin to fall but are soon pushed back up by the winds and more droplets freeze onto them, resulting in multiple layers of ice on the hailstones.
    • This fall and rise is repeated several times, till the hailstones become too heavy and fall down.

  • [pib] SDG India Index 2021

    The third edition of the SDG India Index and Dashboard 2020–21 was released by NITI Aayog.

    SDG India Index

    • The index measures the progress at the national and sub-national level in the country’s journey towards meeting the Global Goals and targets.
    • It has been successful as an advocacy tool to propagate the messages of sustainability, resilience, and partnerships, as well.
    • From covering 13 Goals, 39 targets, and 62 indicators in the first edition in 2018-19 to 17 Goals, 54 targets and 100 indicators in the second; this third edition of the index covers 17 Goals, 70 targets, and 115 indicators.

    Aims and objectives

    • The construction of the index and the ensuing methodology embodies the central objectives of measuring the performance of States and UTs on the SDGs and ranking them.
    • It aims at supporting States and UTs in identifying areas which require more attention; and promoting healthy competition among them.

    Methodology and Process

    • The index estimation is based on data on indicators for the first 16 goals, with a qualitative assessment for Goal 17.
    • The technical process of target setting and normalization of scores follow the globally established methodology.
    • While target setting enables the measurement of the distance from the target for each indicator, the process of normalization of positive and negative indicators allows for comparability and estimation of goal-wise scores.
    • The composite score of a State is derived by assigning each goal the same weight, keeping in mind the indivisible nature of the 2030 Agenda.
    • The selection of indicators is preceded by a consultative process undertaken in close coordination with MoSPI, Union Ministries and stakeholders from States and UTs.

    Highlights of the 2021 Report

    States and Union Territories are classified as below based on their SDG India Index score:

    • Aspirant: 0–49
    • Performer: 50–64
    • Front-Runner: 65–99
    • Achiever: 100

    Its significance

    • The index represents the articulation of the comprehensive nature of the Global Goals under the 2030 Agenda while being attuned to the national priorities.
    • The modular nature of the index has become a policy tool and a ready reckoner for gauging the progress of States and UTs on the nature of goals including health, education, gender, economic growth and climate change and the environment.

    Back2Basics: Sustainable Development Goals

    • The UN General Assembly in its 70thSession considered and adopted the Sustainable Development Goals (SDGs) for the next 15 years.
    • The 17 SDGs came into force with effect from 1st January 2016.
    • Though not legally binding, the SDGs have become de facto international obligations and have the potential to reorient domestic spending priorities of the countries during the next fifteen years.
    • Countries are expected to take ownership and establish a national framework for achieving these goals.
    • Implementation and success will rely on countries’ own sustainable development policies, plans, and programs.

  • International Nitrogen Initiative (INI)

    The United Nations (UN) Sustainable Development Goals (SDGs) are the main focus of the eighth triennial conference of the International Nitrogen Initiative (INI) being held virtually this week.

    International Nitrogen Initiative

    • INI is an international program, set up in 2003 under the sponsorship of the Scientific Committee on Problems of the Environment (SCOPE) and from the International Geosphere-Biosphere Program (IGBP).
    • The key aims of the INI are to:
    1. optimize nitrogen’s beneficial role in sustainable food production, and
    2. minimize nitrogen’s negative effects on human health and the environment resulting from food and energy production.

    Answer this PYQ in the comment box:

    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

    Why nitrogen?

    • Reactive nitrogen compounds like NOx, ammonia and the greenhouse gas nitrous oxide impact air, water and soil quality, health, biodiversity and climate change, among others.
    • These compounds are lost from fertilizers, manures, and sewage as well as from fuel burning in transport and industry.
    • Assessing and managing them sustainably will be crucial to achieving the 17 UN SDGs targeted for 2030.

    Also read:

    [Burning Issue] Nitrogen Pollution in India

    Back2Basics: Nitrogen Pollution

    • While nitrogen is the dominant gas in the atmosphere, it is inert and doesn’t react.
    • However, when it is released as part of compounds from agriculture, sewage and biological waste, nitrogen is considered reactive.
    • It may be polluting and even exert a potent greenhouse gas effect.
    • Nitrous oxide (N2O) is 300 times more potent than carbon dioxide but isn’t as prevalent in the atmosphere.
    • Other than air pollution, nitrogen is also linked to the loss of biodiversity, the pollution of rivers and seas, ozone depletion, health, economy, and livelihoods.
    • Nitrogen pollution is caused, for example, by emissions from chemical fertilizers, livestock manure and burning fossil fuels.
    • Gases such as ammonia (NH3) and nitrogen dioxide (NO2) contribute to poor air quality and can aggravate respiratory and heart conditions, leading to millions of premature deaths across the world.
    • Nitrate from chemical fertilizers, manure, and industry pollute the rivers and seas, posing a health risk for humans, fish, coral, and plant life.

  • Species in news: Litoria Mira

    A species of frog lives in the rainforests of New Guinea that appears to be made from chocolate — just like the magical sweets popular in the wizarding world of J K Rowling’s Harry Potter.

    Litoria mira

    • The cocoa-colored frogs have turned out to be a new species — and an addition to our knowledge of the animal kingdom.
    • It has a well-known relative — the common green tree frog of Australia called Litoria cerulean.
    • Litoria Mira can be distinguished from all other Litoria by its unique combination of moderately large size, webbing on hand, relatively short and robust limbs, and a small violet patch of skin on the edge of its eyes.

  • Why people are Protesting in Lakshadweep

    The article highlights the issues with development model sought to be pursued in Lakshadweep.

    Background of Island Development Authority’

    • A specially constituted Island Development Authority (IDA) for the island territories of India, chaired by no less than the former Prime Minister, Rajiv Gandhi.
    • IDA had in 1988, approved a framework for the development of India’s island territories.
    • IDA sought an environmentally sound strategy for both island groups hinges on better exploitation of marine resources coupled with much greater care in the use of land resources.
    • Deliberations of the IDA wanted that Lakshadweep, with its land ownership constitutionally protected, be opened to international tourism.

    Issues with following Maldives model for development of Lakshadweep

    •  Recently, the Administrator, Lakshadweep, introduced a slew of draft legislation that will have a wide-ranging impact on the islands.
    • One such legislation is the Lakshadweep Development Authority Regulation 2021 with intentions to develop Lakshadweep like neighbouring Maldives, “a renowned international tourist destination”.
    • Rejecting the Maldives model, the plan for Lakshadweep required that the industry had to be people-centric and enrich the fragile coral ecology.
    • Today, long lines and refrigeration have aided the expansion of the fishing sector but income disparities have grown.
    • Indiscriminate trawling endangers the coral, as experienced in the Maldives and now banned there.
    • The Government recognises the need to develop policies for enhancing employment opportunities, environment-friendly management of fisheries, sanitation, waste disposal and widening access to drinking water, with the youth, having acquired a modern education, preferring salaried jobs over pursuing traditional occupations.

    Conclusion

    What Lakshadweep needs is a clear policy must include conservation and natural resource management arrived at after wide consultation, eminently possible within the existing infrastructure of the Union Territory, and also taking into account climatic compulsions.