💥Join UPSC 2027,2028 Mentorship (August Batch) + XFactor Notes & Microthemes PDF
Talk to Mentor

Civilsdaily

Login

Subject: Environment

  • What is Ambergris?

    In the past few weeks, there have been two cases where the Mumbai Police has arrested five persons trying to sell Ambergris or whale vomit.

    What is Ambergris?

    • Ambergris, French for grey amber, is generally referred to as whale vomit.
    • It is a solid waxy substance that floats around the surface of the water body and at times settles on the coast.
    • A sperm whale eats several thousand squid beaks a day.
    • Occasionally, a beak makes it way to the whale’s stomach and into its looping convoluted intestines where it becomes ambergris through a complex process, and may ultimately be excreted by the whale.

    Is it Ambergris valuable?

    • This excretion is so valuable it is referred to as floating gold.
    • As per the latest estimates given by Mumbai Police, 1 kg of ambergris is worth Rs 1 crore in the international market.
    • The reason for its high cost is its use in the perfume market, especially to create fragrances like musk.
    • It is believed to be in high demand in countries like Dubai that have a large perfume market. Ancient Egyptians used it as incense.
    • It is also believed to be used in some traditional medicines.

    Why are the laws on Ambergris?

    • Due to its high value, Ambergris has been a target for smugglers especially in coastal areas.
    • There have been several cases where the coastline of Gujarat has been used for such smuggling.
    • Since the sperm whale is a protected species, hunting of the whale is not allowed.
    • However, smugglers are known to have illegally targeted the fish in order to obtain the valuable Ambergris from its stomach.
    • However, Ambergris is produced only by an estimated one per cent of sperm whales.

  • Places in news: Yellowstone National Park

    A new assessment of climate change in the Yellowstone National Park shows that it has lost a quarter of its annual snowfall.

    Yellowstone National Park

    • Yellowstone NP is an American national park located in the western United States, largely in the northwest corner of Wyoming and extending into Montana and Idaho.
    • Yellowstone was the first national park in the US and is also widely held to be the first national park in the world.
    • The park is known for its wildlife and its many geothermal features, especially Old Faithful geyser, one of its most popular.
    • While it represents many types of biomes, the subalpine forest is the most abundant. It is part of the South Central Rockies forests ecoregion.
    • The area also represents the one point where the three major river basins of the western U.S. converge.
    • The rivers of the Snake-Columbia basin, Green-Colorado basin, and Missouri River Basin all begin as snow on the Continental Divide as it weaves across Yellowstone’s peaks and plateaus.

    Impact of climate change

    • Since 1950, average temperatures in the Greater Yellowstone Area have risen 1.3°C and potentially, more importantly, the region has lost a quarter of its annual snowfall.
    • The loss of snow there has repercussions for a vast range of ecosystems and wildlife, as well as cities and farms downstream that rely on rivers that start in these mountains.
    • It is home to the southernmost range of grizzly bear populations in North America and some of the longest intact wildlife migrations, including the seasonal traverses of elk, pronghorn, mule deer and bison.

    Answer this PYQ in the comment box:

    Q.Consider the following pairs:

    River                              Flows into

    1. Mekong –                   Andaman Sea

    1. Thames –                     Irish Sea
    2. Volga –                     Caspian Sea
    3. Zambezi –                  Indian Ocean

    Which of the statements given above is/are correct? (CSP 2020)

    (a) 1 and 2 only

    (b) 3 only

    (c) 3 and 4 only

    (d) 1,2 and 4 only

  • Compensation for Covid deaths

    The Supreme Court has reserved its verdict seeking compensation of Rs 4 lakh to the kin of those who have died of Covid-19 or related complications.  The Centre has stated that state governments cannot afford to pay this, and had argued in favor of a broader approach including health interventions.

    Provisions for Compensation

    • Last year, the Centre declared Covid-19 as a notified disaster under the Disaster Management Act.
    • Section 12(iii) of the Act says the National Authority shall recommend guidelines for the minimum standards of relief to be provided to persons affected by disaster.
    • It includes “ex gratia assistance on account of loss of life as also assistance on account of damage to houses and for restoration of means of livelihood”.
    • The Centre revises this amount from time to time.

    What is the latest amount?

    • On April 8, 2015, the Disaster Management Division of the Home Ministry wrote to all state governments and attached a revised list of “norms of assistance”.
    • Under “ex gratia payment to families of deceased persons”, it specified: Rs 4 lakh per deceased person including those involved in relief operations or associated in preparedness activities.
    • This is subjected to certification regarding cause of death from appropriate authority.

    So, what about compensation for Covid?

    • Last year the Home Ministry wrote to state governments that the central government has decided to treat it (Covid-19) as a notified disaster for the purpose of providing assistance under SDRF.
    • It attached a partially modified list of items and norms of assistance.
    • It did not specify payment of ex gratia to families of deceased.
    • Some states have decided to pay, but not for all deaths.

    How has the government responded to the petition?

    • The Centre has submitted that ex gratia of Rs 4 lakh is beyond the affordability of state governments.
    • It argued that if Rs 4 lakh is paid to the kin of each, it “may possibly” consume the entire amount of the State Disaster Relief Fund (SDRF).
    • This would leave states with insufficient funds for organizing a response to the pandemic, or to take care of other disasters.
    • The centre argued that the term ex gratia itself means the amount is not based on legal entitlement.

    Way ahead

    • A broader approach, which involves health interventions, social protection, and economic recovery for the affected communities would be a more prudent, responsible, and sustainable approach.

  • Species in news: Pygmy Hogs

    Few captive-bred pygmy hogs, the world’s rarest and smallest wild pigs, were released in the Manas National Park of western Assam under the Pygmy Hog Conservation Programme (PHCP).

    Pygmy Hogs

    • The pygmy hog (Porcula salvania) is a native to alluvial grasslands in the foothills of the Himalayas at elevations of up to 300 m (980 ft).
    • Today, the only known population lives in Assam, India and possibly southern Bhutan.
    • As the population is estimated at less than 250 mature individuals, it is listed as Endangered on the IUCN Red List.
    • It is designated as a Schedule I species in India under the Wildlife Protection Act, 1972, and offences against them invite heavy penalties.

    About Pygmy Hog Conservation Programme (PHCP)

    • The PHCP is a collaboration among Durrell Wildlife Conservation Trust of UK, Assam Forest Department, Wild Pig Specialist Group of IUCN and Union Environment Ministry.
    • It is currently being implemented by NGOs Aaranyak and EcoSystems India.
    • Six hogs — two males and four females — were captured from the Bansbari range of the Manas National Park in 1996 for starting the breeding programme.
    • The reintroduction programme began in 2008 with the Sonai-Rupai Wildlife Sanctuary (35 hogs), Orang National Park (59) and Barnadi Wildlife Sanctuary (22).

    Now answer this PYQ in the comment box:

    Q.Consider the following :

    1. Star tortoise
    2. Monitor lizard
    3. Pygmy hog
    4. Spider monkey

    Which of the above found in India?

    (a) 1, 2 and 3 only

    (b) 2 and 3 only

    (c) 1 and 4 only

    (d) 1, 2, 3 and 4

  • Retreating Monsoon is a global phenomenon: Study

    Rainfall during retreating monsoon, which parts of South India experience every year, is not a local anomaly and is global in nature and scale, according to a recent study by the University of Sydney.

    What is Retreating Monsoon?

    • In India, retreating monsoon is the withdrawal of south-west monsoon winds from North India.
    • The withdrawal is gradual and takes about three months.
    • With the retreat of the monsoons, the clouds disappear and the sky becomes clear. The day temperature starts falling steeply.
    • Monsoon rains weaken all over India except few southeastern states.
    • It is helpful in Rabi crop cultivation.

    What has the research found?

    • The research has identified regions in the northern hemisphere that receive the bulk of the rainfall during September, October and November and southern hemisphere that receive most of the rainfall from March to August.
    • The discovery that these are part of a global pattern and not one-off occurrences means they can be systematically studied, which will help understand how these communities could be affected by climate change.
    • Peninsular India and parts of South-East Asia are among the eight regions examined in the study.

    Factors affecting the retreat

    • The eight global regions identified by the study that receive most of their rainfall after summer, have several things in common.
    • They lie on the eastern fringes of landmasses and are in close proximity to mountain ranges with modest heights.

    Two predominant factors cause the phenomenon:

    • First, the low mountain range in each region runs from north to south, shielding it from west-bound winds that trigger summer monsoon.
    • After summer, the range aids in the ‘orographic lift’ or rising of east-bound air mass from a lower to higher elevation, forming clouds and resulting in rain.
    • The second factor is atmospheric convection or vertical movement of air.
    • As the earth is heated by the sun, different surfaces absorb different amounts of energy and convection may occur where the surface heats up very rapidly.
    • As the surface warms, it heats the overlying air, which gradually becomes less dense than the surrounding air and begins to rise.
    • This condition is more favorable from September to February because of the role played by sea surface temperature or water temperature.

    Answer this PYQ in the comment box:

    Q.The seasonal reversal of winds is the typical characteristic of:

    (a) Equatorial climate

    (b) Mediterranean climate

    (c) Monsoon climate

    (d) All of the above climates

  • Species in news: Rare Black Softshell Turtle (Nilssonia nigricans)

    A major temple in Assam has signed a MoU with NGOs, the Assam State Zoo-cum-Botanical Garden and the Kamrup district administration for the long-term conservation of the rare freshwater black softshell turtle or the Nilssonia nigricans.

    Two years back, one species from our newscard: Species in news: Hump-backed Mahseer made it into the CSP 2019.  The ‘Puntius Sanctus’ fish in the newscard creates such a vibe yet again.

    A stand-alone species being mentioned in the news for the first time (and that too from Southern India) find their way into the prelims. Make special note here.

     

    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 correctly matched? (CSP 2019)

    (a) 1 and 2 only

    (b) 2 and 3 only

    (c) 1 and 3 only

    (d) 1, 2 and 3

     

    Nilssonia nigricans

    • Until sightings along the Brahmaputra’s drainage in Assam, the black softshell turtle was thought to be “extinct in the wild”.
    • It was confined only to ponds of temples in northeastern India and Bangladesh.
    • The International Union for Conservation of Nature had in 2021 listed the turtle as “critically endangered”.
    • But it does not enjoy legal protection under the Indian Wildlife (Protection) Act of 1972, although it has traditionally been hunted for its meat and cartilage, traded in regional and international markets.

  • Green Hydrogen

    India is all set to host a two-day summit on Green Hydrogen initiatives involving the BRICS nations.

    What is Green Hydrogen?

    • Hydrogen, when produced by electrolysis using renewable energy is known as Green Hydrogen which has no carbon footprint.
    • This gives hydrogen the edge over other fuels to unlock various avenues of green usage.
    • However, challenges lie in terms of technology, efficiency, financial viability, and scaling up which the summit will aim to address.

    Answer this PYQ in the comment box:

    Q.With reference to ‘fuel cells’ in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements:

    1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by products.
    2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.
    3. Fuel cells produce electricity in the form of Alternating Current (AC).

    Which of the statements given above is/are correct?

    (a) 1 only

    (b) 2 and 3 only

    (c) 1 and 3 only

    (d) 1, 2 and 3

    Applications of green hydrogen

    • Green hydrogen has innumerable applications.
    • Green Chemicals like ammonia and methanol can directly be utilized in existing applications like fertilizers, mobility, power, chemicals, shipping among others.
    • Green Hydrogen blending up to 10 percent may be adopted in CGD networks to gain widespread acceptance.
    • Further scaling up with greening of hard to abate sectors like steel and cement through hydrogen is to be explored.
    • Many countries have brought out their strategies and defined targets and roadmaps based on their resources and strengths.

    Back2Basics: BRICS Countries

    • BRICS is an acronym for the grouping of the world’s leading emerging economies, namely Brazil, Russia, India, China and South Africa.
    • To be clear, BRICS was not invented by any of its members.
    • In 2001, Goldman Sachs’ Jim O’Neill authored a paper called “Building Better Global Economic BRICs”, pointing out that future GDP growth in the world would come from China, India, Russia and Brazil.
    • Significantly, the paper didn’t recommend a separate grouping for them, but made the case that the G-7 grouping, made up of the world’s most industrialized, and essentially Western countries, should include them.
    • O’Neill also suggested that the G-7 group needed revamping after the introduction of a common currency for Europe, the euro, in 1999.
    • In 2003, Goldman Sachs wrote another paper, “Dreaming with BRICs: Path to 2050”, predicting that the global map would significantly change due to these four emerging economies.
    • In 2006, leaders of the BRIC countries met on the margins of a G-8 (now called G-7) summit in St. Petersburg, Russia, and BRIC was formalized that year.

  • What the G7 message on net-zero emissions means for India

    The article highlights G-7 countries’ emphasis on adoption of net-zero emission target and its implications for India.

    Shifting responsibility to developing countries

    • The Cornwall G7 summit sought to re-establish a common purpose among the richest democracies of the world.
    • The G7 agreed “collectively” to net-zero GHG emissions by 2050 and called on “all countries, in particular, major emitting economies” to join as part of global efforts.
    • And, ODA (official development assistance) has been made contingent on net-zero emissions by 2050 and deep cuts in emissions in the 2020s.
    • G7 made an equal effort to shift the responsibility to the large developing countries.
    • However, “common and differentiated responsibilities” is the agreed guiding principle for tackling climate change.
    • Differentiation underscores the responsibility of the industrialised countries to lead.

    India’s climate actions

    • India has been a leading stakeholder in climate action and is among the few in the G20 in line to meet their commitments under the Paris Accord.
    • It has also taken on a most ambitious target of 450 GW of renewable power by 2030.
    • India has shown the world the way forward on solar power with producers now offering ultra-competitive tariffs.

    India’s concerns

    • Coal was particularly in the eye of the G7 which stressed “that international investments in unabated coal must stop now” .
    •  India, that continues to rely on coal, could face a crunch in assistance in thermal power.
    • BASIC, comprising India, China, Brazil and South Africa, has so far led the efforts of large developing countries in climate negotiations.
    • But with possible differences of opinion on net zero, BASIC’s clout in future global negotiations is questionable.

    Way forward

    • Finance and technology are the key areas where the industrialised West can and must lead.
    • The collective developed countries’ commitment of $ 100 billion per year was made in Copenhagen in 2009 and is nowhere near being reached.
    • A smallish sum of $2 billion was committed by G7 to accelerating the transition from coal.
    • For India, with its huge developmental needs and global high-table aspirations that require carbon and policy spaces, the imperative is strong diplomatic partnerships with large developing economies that have an inherent interest in GREEN-Growth with Renewable Energy, Entrepreneurship and Nature.

    Conclusion

    India, which has huge developmental needs and global high-table aspirations that require carbon and policy spaces, must protect its interests.

  • Desertification and Land Degradation Atlas of India

    The Union Environment Ministry has released the latest version of “Desertification and Land Degradation Atlas of India.

    Desertification and Land Degradation Atlas

    • It has been published by Space Application Centre, ISRO, Ahmedabad.
    • The Atlas provides a state-wise area of degraded lands for the time frame 2018-19.
    • It also provides the change analysis for the duration of 15 years, from 2003-05 to 2018-19.
    • It would provide important baseline and temporal data and technical inputs.

    Content of the atlas

    • This Atlas presents state-wise desertification and land degradation status maps depicting land use, the process of degradation, and severity level.
    • This was prepared using IRS Advanced Wide Field Sensor (AWiFS) data of 2011-13- and 2003-05-time frames in the GIS environment.
    • The area under desertification/land degradation for both time frames and changes are reported state-wise as well as for the entire country.
    • The outputs are helpful in prioritizing areas to be taken up for minimizing the impact of desertification and land degradation.

    India and desertification

    • Desertification and land degradation are major threats to agricultural productivity in our country.
    • India hosted the 14th session of the Conference of Parties (COP 14) of the United Nations Convention to Combat Desertification (UNCCD) in September 2019.
    • India is striving towards achieving the national commitments of Land Degradation Neutrality (LDN) and restoration of 26 million ha of degraded land by 2030.
    • India has been at the forefront of bringing the issue of land degradation to the core of relevant international alliances for the protection and conservation of the environment.
    • India has adopted a collective approach for making progress towards achieving the national commitments related to land restoration.

    Answer this PYQ from CSP 2016 in the comment box:

    Q.What is/are the importance/importances of the ‘United Nations Convention to Combat Desertification?

    1. It aims to promote effective action through innovative national programmes and supportive inter-national partnerships.
    2. It has a special/particular focus on South Asia and North Africa regions, and its secretariat facilitates the allocation of major portion of financial resources to these regions.
    3. It is committed to bottom-up approach, encouraging the participation of local people in combating the desertification.

    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

  • NatGeo recognizes ‘Southern Ocean’ as globe’s fifth ocean

    The National Geographic magazine has recognized the ‘Southern Ocean’ as the world’s fifth ocean June 8, 2021 hoping others will soon follow suit.

    Answer this PYQ from CSP 2019 in the comment box:

    Q.The most important fishing grounds of the world are found in the regions where:

    (a) warm and cold atmospheric currents meet

    (b) rivers drain out large amounts of freshwater into the sea

    (c) warm and cold oceanic currents meet

    (d) continental shelf is undulating

    Southern Ocean

    • The Southern Ocean, also known as the Antarctic Ocean, comprises the southernmost waters of the World Ocean, generally taken to be south of 60° S latitude and encircling Antarctica.
    • As such, it is regarded as the second-smallest of the five principal oceanic divisions: smaller than the Pacific, Atlantic, and Indian oceans but larger than the Arctic Ocean.
    • Over the past 30 years, the Southern Ocean has been subject to rapid climate change, which has led to changes in the marine ecosystem.

    What has NatGeo attempted?

    • The magazine says the Southern Ocean is the only ocean ‘to touch three other oceans and to completely embrace a continent rather than being embraced by them’.
    • Its northern limit is a latitude of 60 degrees south.
    • It is also defined by its Antarctic Circumpolar Current that was formed 34 million years ago. The current flows from west to east around Antarctica.
    • The Southern Ocean is home to large populations of whales, penguins, and seals.

    Why such a move?

    • Usually, the magazine has followed the International Hydrographic Organization (IHO) on marine names, it said in an article notifying the change.
    • The IHO too had recognized ‘Southern Ocean’ as a distinct body of water surrounding Antarctica in 1937 but had repealed the same in 1953.