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Subject: Conservation & Mitigation

1. Conservation Progs.
2. Worldwide initiatives
3. Mitigation Strategies
4. Conventions and Protocols

  • Hydel projects in Ganga-Himalayan basin

    Context

    The affidavit filed recently by the Ministry of Environment, Forest and Climate Change (MoEFCC) in an ongoing matter in the Supreme Court of India has recommended the construction of seven partially constructed hydroelectric projects in the Uttarakhand Himalaya.

    Background

    • After the Kedarnath tragedy of 2013, an expert body (EB-I) was constituted to investigate whether the hydro-power projects in the State of Uttarakhand was linked to the disaster.
    •  In its findings, EB-I said there was a “direct and indirect impact” of these dams in aggravating the disaster.
    • The Ministry formed another expert body (EB-II; B.P. Das committee) whose mandate has been to pave the way for all projects through some design change modifications
    • This affidavit, dated August 17, reveals that the government is inclined towards construction of 26 other projects, as in the recommendation of the expert body (EB-II; B.P. Das committee). 
    • Ministry’s own observations and admissions given in its earlier affidavit dated May 5, 2014 admitted that hydroelectric projects did aggravate the 2013 flood.

    Concerns

    • Sustainability: The sustainability of the dams in the long term is highly questionable as hydropower solely relies on the excess availability of water.
    • Temperatures across the region are projected to rise by about 1°C to 2°C on average by 2050.
    • Retreating glaciers and the alternating phases of floods and drought will impact the seasonal flows of rivers.
    • Sediment hotspots: The most crucial aspect is the existence of sediment hotspot paraglacial zones, which at the time of a cloud burst, contribute huge amounts of debris and silt in the river.
    • The flash floods in these Himalayan valleys do not carry water alone; they also carry a massive quantity of debris.
    • This was pointed out by EB-II alongside its recommendation not build any projects beyond 2,000 metres or north of the MCT, or the Main Central Thrust (it is a major geological fault).
    • Externalities:  Though hydropower is renewable source, there are contentious externalities associated with the construction of dams such as social displacement, ecological impacts, environmental and technological risks.
    • Climate change: these projects exacerbate ecological vulnerability, in a region that is already in a precarious state.
    • The intense anthropogenic activities associated with the proliferation of hydroelectric projects in these precarious regions accelerate the intensity of flash floods, avalanches, and landslides.
    • Failure of mountain slopes: The construction and maintenance of an extensive network of underground tunnels carrying water to the powerhouses contribute to the failure of mountain slopes.
    • Aggravating the disaster: The Rishi Ganga tragedy and the disasters of 2012 (flashfloods), 2013 are examples of how hydroelectric projects which come in the way of high-velocity flows aggravate a disaster and should be treated as a warning against such projects.

    Conclusion

    Considering the environmental and cultural significance of these areas, it is imperative that the Government refrains from the construction of hydroelectric projects and declares the upper reaches of all the headstreams of the Ganga as eco-sensitive zones. It must allow the river to flow unfettered and free.

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    Back2Basics: Main Central Thrust (MCT)

    • The Main Central Thrust is a major geological fault where the Indian Plate has pushed under the Eurasian Plate along the Himalaya.
    • The fault slopes down to the north and is exposed on the surface in a NW-SE direction (strike).
    • It is a thrust fault that continues along 2200 km of the Himalaya mountain belt

  • Behler Turtle Conservation Award

    Indian biologist Shailendra Singh has been awarded the Behler Turtle Conservation Award for bringing three critically endangered turtle conservation species back from the brink of extinction.

    Behler Turtle Conservation Award

    • The Award is a major annual international award honoring excellence in the field of tortoise and freshwater turtle conservation and biology, and leadership in the chelonian conservation and biology community.
    • It is co-presented by the Turtle Survival Alliance (TSA), the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group (TFTSG) among others.
    • It is widely considered the “Nobel Prize” of turtle conservation and biology.

    Citation for the 2021 Award

    • For some species, such as the Red-crowned Roofed Turtle (Batagur kachuga), Northern River Terrapin (Batagur Baska), and Black Softshell Turtle (Nilssonia nigricans) Dr. Singh and his team’s efforts are the last hope for their wild survival in the country.
    • In just 15 years, there are few individuals that have made such monumental contributions to turtle conservation.

    Turtles in India

    • The Northern River Terrapin (Batagur Baska) is being conserved at the Sunderbans; the Red-crowned Roofed Turtle (Batagur kachuga) at Chambal; and the Black Softshell Turtle (Nilssonia nigricans) at different temples in Assam.
    • These critically endangered turtles are being conserved as a part of TSA India’s research, conservation breeding and education programme in different parts of the country.
    • There are 29 species of freshwater turtles and tortoises in the country.

    About Turtle Survival Alliance (TSA)

    • The TSA was formed in 2001 as an International Union for Conservation of Nature (IUCN) partnership for sustainable captive management of freshwater turtles and tortoises.
    • This alliance arose in response to the rampant and unsustainable harvest of Asian turtle populations to supply Chinese markets, a situation known as the Asian Turtle Crisis.

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  • Ladakh adopts State Animal and Bird

    Ladakh has adopted two endangered species, snow leopard and black-necked crane, as State animal and State bird, two years after it was carved out as a separate Union Territory (UT) from the erstwhile State of J&K.

    Snow Leopard

    • The snow leopard (Panther unica) and black-necked crane (Grus nicricollis).
    • Snow leopard, whose numbers are dwindling worldwide, has been categorized as “vulnerable” in the International Union for Conservation of Nature Red List.
    • In total, there are about 7,500 snow leopards left in the world, out of which 500 are in India.
    • However, experts state that the population of snow leopards is between 200-300 in Ladakh alone.

    Black-necked Crane

    • The black-necked crane is found in eastern Ladakh’s high-altitude wetlands and marshes.
    • It is mostly listed as Near Threatened on the International Union for Conservation of Nature (IUCN) red list.
    • Considered loyal couples, they are only found in Ladakh’s Changthang region. They arrive in March for breeding and migrate by October end or early November.
    • It was the State bird of J&K before August 5, 2019.

    About Ladakh

    • Ladakh was established as a union territory of India on 31 October 2019, following the passage of the Jammu and Kashmir Reorganization Act.
    • Prior to that, it was part of the Jammu and Kashmir state. Ladakh is the largest and the second least populous union territory of India.
    • It extends from the Siachen Glacier in the Karakoram range to the north to the main Great Himalayas to the south.
    • The eastern end, consisting of the uninhabited Aksai Chin plains, is claimed by the Indian Government as part of Ladakh and has been under Chinese control since 1962.
    • The largest town in Ladakh is Leh, followed by Kargil, each of which headquarters is a district.
    • The Leh district contains the Indus, Shyok and Nubra river valleys. The Kargil district contains the Suru, Dras and Zanskar river valleys.

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  • Managing natural resources

    Context

    A project in Meghalaya empowers communities to take informed action pertaining to their environment.

    Depletion of natural resources in Meghalaya

    • In recent years, many parts of Meghalaya have witnessed the loss of forest cover and natural resources have rapidly deteriorated.
    • The State, known to have spots designated as the ‘wettest places’ on earth, is now facing a severe water crisis.
    • Natural resource management becomes critical in this context.

    Challenges in natural resource management

    • Traditional practices on sustainable use of natural resources have been passed down from one generation to another.
    • Overexploitation: This indigenous knowledge began to slowly fade, however, owing to population growth,  the quest for unsustainable developmental activities, and indiscriminate exploitation of natural resources.
    • Inaccessibility of knowledge: Another roadblock to natural resource management was knowledge inaccessibility among rural communities.

    Providing knowledge: Landscape Management Project

    • The government wanted to see if, when provided with the correct knowledge, solutions to problems can be devised and even implemented by community members themselves.
    • The World Bank-supported Meghalaya Community-Led Landscape Management Project seeks to reactivating the community’s connection to natural resources and enabling them to tackle the resource crisis.
    • How the project worked: cross-functional teams with diverse expertise were set up.
    • The Mahatma Gandhi National Rural Employment Guarantee Scheme became the main scheme channelizing resources to impact poor households so that there was systematic convergence of all line departments such as agriculture, horticulture, soil, and water conservation.
    • The programme leverages technology and the youth population.
    • Leveraging technology, more than 2,000 village community facilitators have already been trained and are working towards climate change reversal.
    • Autonomy: To build autonomy, simple tools are used.
    • They have been designed keeping in mind many things: creating community agency, building the capacities of all persons in the programme, and ensuring frequent interactions among them.
    • Leveraging technology: Technology empowers them with real-time data, which in turn results in better programme governance, transparency, and accountability.
    • Communities are now able to articulate the complexities of their problems through a scientific lens and create their own natural resource management plans.
    • To carry forward this momentum, there is a plan to launch a Centre of Excellence in Meghalaya, a one-stop centre for natural resources management.

    Conclusion

    The project intends to empower thousands of village community facilitators and enable them to articulate the complexities of their problems through a scientific lens and create their own natural resource management plans.

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  • Leaded Petrol is officially eradicated

    The use of leaded petrol has been eradicated from the globe, a/c to the UN Environment Programme (UNEP).

    What is Leaded Petrol?

    • Tetraethyl-lead (TEL) is a petro-fuel additive, first being mixed with petrol beginning in the 1920s as a patented octane rating booster that allowed engine compression to be raised substantially.
    • This in turn caused increased vehicle performance and fuel economy.
    • The practice of adding tetraethyl lead to petrol had spread widely to all countries soon after its anti-knock and octane-boosting properties were discovered.
    • TEL is still used as an additive in some grades of aviation gasoline.

    Issues with leaded petrol

    • Lead is toxic, affects multiple body systems and is particularly harmful to young children.
    • It affects the brain, liver, kidneys, and bones. Lead is measured in the blood to understand exposure.
    • Lead in bone is released into the blood during pregnancy and becomes a source of exposure to the developing foetus.
    • More recent research has indicated that lead can damage the infant brain even at blood levels as low as 5 microunits per decilitre (μ/dl).

    India’s tryst with leaded petrol

    • India was among those countries that took early action to phase out leaded petrol. The process of phase down that had started in 1994, got completed in 2000.
    • Initially, low-leaded petrol was introduced in Delhi, Mumbai, Kolkata and Chennai in 1994, followed by unleaded petrol in 1995.
    • The entire country got low-leaded petrol in 1997 while leaded fuel was banned in the National Capital Territory of Delhi.
    • The final introduction of unleaded petrol in the entire country was mandated in April 2000.
    • This decision was also catalyzed by the Supreme Court order that had directed the introduction of unleaded petrol to enable the adoption of catalytic converters in petrol cars.

    Significance of phasing out

    • It is a milestone that will prevent more than 1.2 million premature deaths and save world economies over $2.4 trillion annually.
    • It has taken 100 years to stop the use of leaded fuel finally.

    Try answering this PYQ:

    Q.Lead, ingested or inhaled, is a health hazard. After the addition of lead to petrol has been banned, what still are the sources of lead poisoning? (CSP 2012)

    1. Smelting units
    2. Pens pencils
    3. Paints
    4. Hair oils and cosmetics

    Select the correct answer using the codes given below:

    (a) 1, 2 and 3 only

    (b) 1 and 3 only

    (c) 2 and 4 only

    (d) 1, 2, 3 and 4

     

    [wpdiscuz-feedback id=”pqazxezyfv” question=”Please leave a feedback on this” opened=”1″]Post your answers here.[/wpdiscuz-feedback]

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  • Places in news: Pantanal Wetlands

    Pantanal, the world’s largest tropical wetlands is facing a severe crisis due to wildfires and climate change.

    Pantanal Wetlands

    • The Pantanal is a natural region encompassing the world’s largest tropical wetland area, and the world’s largest flooded grasslands.
    • It is located mostly within the Brazilian and extends to some portions of Bolivia and Paraguay.
    • It sprawls over an area estimated at between 140,000 and 195,000 square kilometer.
    • Roughly 80% of the Pantanal floodplains are submerged during the rainy seasons, nurturing a biologically diverse collection of aquatic plants and helping to support a dense array of animal species.

    Risks faced

    • Unlike the Amazon rainforest, vegetation in the Pantanal has evolved to coexist with fire — many plant species there require the heat from fires to germinate.
    • Often caused by lightning strikes, those natural fires spring up at the end of the dry season, but the surrounding floodplains prevent them from spreading.
    • What’s different now is the drought, contributing further to the unusually dry conditions and exacerbating the fire risk.

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  • Places in news: Deepar Beel Wildlife Sanctuary

    The Ministry of Environment, Forest and Climate Change has notified the eco-sensitive zone of the Deepar Beel Wildlife Sanctuary on the south-western edge of Guwahati.

    Deepar Beel

    • Deepar Beel is one of the largest freshwater lakes in Assam and the State’s only Ramsar site besides being an Important Bird Area.
    • It is located to the south-west of Guwahati city, in Kamrup Metropolitan district.
    • It is a permanent freshwater lake, in a former channel of the Brahmaputra River, to the south of the main river.
    • It is also called a wetland under the Ramsar Convention which has listed the lake in November 2002, as a Ramsar Site for undertaking conservation measures on the basis of its biological and environmental importance.

    Major threats

    • Deepar Beel has long been used as a sponge for Guwahati’s sewage via a couple of streams.
    • The wetland has also suffered from seepage of toxins from a garbage dump at Boragaon adjoining it.
    • It has for decades been threatened by a railway track — set to be doubled and electrified — on its southern rim, a garbage dump, and encroachment from human habitation and commercial units.
    • The water has become toxic and it has lost many of its aquatic plants that elephants would feed on.

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  • Understanding the importance of vultures in our ecosystem

    Context

    India lost more than 95% of its vulture population through the 1990s and by the mid-2000s. Today, the country requires urgent conservation efforts to save vultures from becoming extinct.

    About vultures

    • Vultures belong to the Accipitridae family whose members include eagles, hawks and kites.
    • They are relatively social birds with an average lifespan of 10-30 years in the wild.
    • Vultures are slow breeders and so the survival of every individual is very crucial.
    • Generally, vultures rely on other carnivores to open carcasses.
    • Their powerful bills and long slender necks are designed to help them tear off the meat chunks from inside the carcass.
    • India has nine species of vultures. Many are critically endangered.
    • Vultures have a highly acidic stomach that helps them digest rotting carcass and kill disease-causing bacteria.

    Role played by vultures in ecosystem

    • Removing vultures from the ecosystem leads to inefficient clearing of carcasses and contaminates water systems.
    • If dead animals are left to rot for long durations, it may give rise to disease-causing pathogens.
    • The animals that consume such flesh become further carriers of disease.
    • Thus, they play a crucial role in maintaining the health of the ecosystem.

    Factors responsible for decline in future population

    • India has nine species of vultures. Many are critically endangered.
    • Use of diclofenac: The main reason for the decline in the vulture population is the use of the drug, diclofenac.
    • Diclofenac, which relieves cattle of pain, is toxic to vultures even in small doses and causes kidney failure and death.
    • Hunting: Myths about the medicinal healing powers of vultures’ body parts has led to the hunting of vultures.
    • Quarrying: Quarrying and blasting of stones where vultures nest have also caused their decline.

    Steps to increase numbers

    • India banned diclofenac for veterinary use in 2006.
    • Five States are to get vulture breeding centres under the Action Plan for Vulture Conservation for 2020-2025, approved in October 2020.
    • Vulture ‘restaurants’, which exist in some countries, are also a way of preserving the population.
    •  In these ‘restaurants’, diclofenac-free carcasses of cattle are dumped in designated areas where vultures gather to feed.

    Conclusion

    Awareness and action must go hand in hand. With International Vulture Awareness Day coming up on September 4, it is important for us to spread awareness about the importance of vultures in our ecosystem.

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  • Places in news: Sambhar Lake

    The world-famous Sambhar Salt Lake in Rajasthan is constantly shrinking with the degradation of soil and water quality and a decline in the population of migratory birds.

    Sambhar Lake

    • The lake, situated 80 km south-west of Jaipur, is the country’s largest inland saline water body which attracts thousands of migratory birds every year.
    • The death of more than 20,000 birds belonging to about 10 species which migrate annually to the lake had made international headlines in 2019.
    • The lake receives water from six rivers: Mantha, Rupangarh, Khari, Khandela, Medtha and Samod.
    • Sambhar has been designated as a Ramsar site because the wetland is a key wintering area for tens of thousands of pink flamingos and other birds that migrate from northern Asia and Siberia.

    Threats: Illegal mining

    • 30% of the Sambhar Lake’s area had been lost to mining and other activities, including the illegal salt pan encroachments.
    • It has also threatened the livelihoods of local people who have always lived in harmony with the lake and its ecology.

    Try answering this:

    Which one of the following is an artificial lake? (CSP 2014)

    (a) Kodaikanal (Tamil Nadu)

    (b) Kolleru (Andhra Pradesh)

    (c) Nainital (Uttarakhand)

    (d) Renuka (Himachal Pradesh)

    [wpdiscuz-feedback id=”vm4ti120of” question=”Please leave a feedback on this” opened=”1″]Post your answers here.[/wpdiscuz-feedback]

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  • SUJALAM Campaign

    The Ministry of Jal Shakti began ‘SUJALAM’, a ‘100 days campaign’ to create more and more ODF Plus villages by undertaking wastewater management at the village level.

    SUJALAM Campaign

    The key activities that will be organized in the villages under this campaign include:

    • Organizing Community consultations, Khuli Baithaks and Gram Sabha meetings to analyze the current situation
    • Pass resolution to maintain ODF sustainability and achieve a needed number of soak pits to manage the greywater
    • Develop a 100 days’ plan to undertake sustainability and soak pit construction-related activities
    • Construct a requisite number of soak pits
    • Retrofit toilets where needed through IEC and community mobilization and
    • Ensure all newly emerging Households in the village have access to toilets

    Objectives of the campaign

    • The effort of the campaign would be directed towards achieving the ODF plus status for villages across the country in an accelerated manner in a short time.
    • The campaign will not only build desired infrastructure soak pit for management of greywater in villages but will also aid in sustainable management of water bodies.
    • The disposal of wastewater and clogging of water bodies in the villages or on the outskirts of the villages remain one of the major problems.
    • The Campaign would help in the management of the wastewater and in turn, would help to revive the water bodies.

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