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Subject: Conservation & Mitigation

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

  • International Convention for the Prevention of Pollution from Ships (MARPOL)

    The Ministry of Shipping has informed about the steps taken for prevention and control of pollution arising from ships in the sea and in the inland waterways under the MARPOL Convention.

    Aspirants must note the following things:

    1. If the convention is a subsidiary to the United Nations/IMO,

    2. Whether it is Legally binding?

    3. If India is a signatory or not …..

    MARPOL Convention

    • MARPOL is the main international convention aimed at the prevention of pollution from ships caused by operational or accidental causes.
    • The Protocol of 1978 was adopted in response to a number of tanker accidents in 1976–1977.
    • It is one of the most important international marine environmental conventions.
    • It was developed by the IMO with an objective to minimize pollution of the oceans and seas, including dumping, oil and air pollution.
    • The Convention includes regulations aimed at preventing and minimizing pollution from ships – both accidental pollution and that from routine operations – and currently includes six technical Annexes.
    • India is a signatory to MARPOL.
    • It has six annexes (I to VI) and it deals with prevention of (1) Pollution from ships by Oil, (2) Noxious liquid substances, (3) Dangerous goods in packaged form, (4) Sewage, (5) Garbage and (6) Air pollution from ships respectively.

  • Green colour band for BS-VI 4W vehicles

    The Ministry of Road Transport and Highways (MoRTH) has issued an order mandating a coloured strip to identify four-wheeled BSVI vehicle.

    Note important PM levels allowed under BS VI norms. Note how it is different from the earlier BS IV norm.

    Details of the colour band

    • MoRTH has mandated a strip of green colour of 1 cm width on top of the existing sticker carrying details of registration for BS-VI.
    • Vehicles of any fuel type will carry the green strip irrespective of their original stickers i.e. for petrol or CNG which have a light blue colour sticker and a diesel vehicle which is of orange colour.
    • These stickers will now have a green strip of 1 cm on top for BS-VI, as mandated.

    Back2Basics:  Bharat Stage Norms

    Standard Reference Date of Implementation
    Bharat Stage II Euro 2 1 April 2005
    Bharat Stage III Euro 3 1 April 2010
    Bharat Stage IV Euro 4 1 April 2017
    Bharat Stage VI Euro 6 April 2020 with a mandate (proposed)

    Minutes of BS-VI

    • Carmakers would have to put three pieces of equipment — a DPF (diesel particulate filter), an SCR (selective catalytic reduction) system, and an LNT (Lean NOx trap) — to meet stringent BS-VI norms, all at the same time.
    • This is vital to curb both PM (particulate matter) and NOx (nitrogen oxides) emissions as mandated under the BS-VI norms.

    How is BS-VI Different from BS-IV?

    • The major difference between the existing BS-IV and forthcoming BS-VI norms is the presence of sulphur in the fuel.
    • While the BS-IV fuels contain 50 parts per million (ppm) sulphur, the BS-VI grade fuel only has 10 ppm sulphur content.
    • Also, the harmful NOx (nitrogen oxides) from diesel cars can be brought down by nearly 70%.
    • In the petrol cars, they can be reduced by 25%.
    • However, when we talk about air pollution, particulate matter like PM 2.5 and PM 10 are the most harmful components and the BS-VI will bring the cancer-causing particulate matter in diesel cars by a phenomenal 80%.

  • Nagar Van (Urban Forest) Scheme

    On the occasion of World Environment Day (5th June), the union govt has announced the implementation of the Nagar Van Scheme to develop 200 Urban Forests across the country in the next five years.

    Do you know?

    India has 8 per cent of world’s biodiversity, despite having many constraints like only 2.5 % of the world’s landmass, has to carry 16% of human population and having only 4% of freshwater sources.

    Urban Forest Scheme

    • The scheme will be implemented with people’s participation and collaboration between the Forest Department, Municipal bodies, NGOs and corporates.
    • These forests will work as lungs of the cities and will primarily be on the forest land or any other vacant land offered by local urban local bodies.
    • This urban area rejuvenation scheme is based on the Smriti Van in the Warje area of Pune City
    • This forest now hosts rich biodiversity with 23 plant species, 29 bird species, 15 butterfly species, 10 reptiles and 3 mammal species.
    • This Urban Forest project is now helping maintain ecological balance, serving both environmental and social needs.

  • The Sixth Mass Extinction

    Click here for high resolution of the image: National Geographic

    The ongoing sixth mass extinction may be one of the most serious environmental threats to the persistence of civilization, according to new research published in an American journal.

    Try this question from CSP 2018:

    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.

    Highlights of the research

    • The study analysed 29,400 species of terrestrial vertebrates and determined which of these are on the brink of extinction because they have fewer than 1,000 individuals.
    • The disappearance of their component populations has been occurring since the 1800s.
    • Most of these 515 species are from South America (30 per cent), followed by Oceania (21 per cent), Asia (21 per cent) and Africa (16 per cent) among others.

    The Anthropocene Extinction

    • Mass extinction refers to a substantial increase in the degree of extinction or when the Earth loses more than three-quarters of its species in a geologically short period of time.
    • So far, during the entire history of the Earth, there have been five mass extinctions.
    • The sixth, which is ongoing, is referred to as the Anthropocene extinction.
    • The five mass extinctions that took place in the last 450 million years have led to the destruction of 70-95 per cent of the species of plants, animals and microorganisms that existed earlier.
    • These extinctions were caused by “catastrophic alterations” to the environment, such as massive volcanic eruptions, depletion of oceanic oxygen or collision with an asteroid.
    • After each of these extinctions, it took millions of years to regain species comparable to those that existed before the event.

    So what is the sixth mass extinction then?

    • Researchers have described it as the “most serious environmental problem” since the loss of species will be permanent.
    • Even though only an estimated 2% of all of the species that ever lived are alive today, the absolute number of species is greater now than ever before.
    • The research claims that this extinction is human-caused and is more immediate than climate destruction.

    Major drivers of mass extinction

    • Significantly, the study calls for a complete ban on wildlife trade as many of the species currently endangered or on the brink of extinction are being decimated by legal and illegal wildlife trade.
    • The current COVID-19 pandemic, while not fully understood, is also linked to the wildlife trade.
    • There is no doubt that there will be more pandemics if man continues destroying habitats and trading wildlife for own consumption as food and traditional medicines.

    What happens when species go extinct?

    • When species go extinct, the impact can be tangible such as in the form of a loss in crop pollination and water purification.
    • Further, if a species has a specific function in an ecosystem, the loss can lead to consequences for other species by impacting the food chain.
    • The effects of extinction will worsen in the coming decades as the resulting genetic and cultural variability will change entire ecosystems.
    • If the number of individuals in a population or species drops, their contributions to ecosystem services become unimportant.
    • Their genetic variability and resilience is reduced, and its contribution to human welfare may be lost.” the study says.

  • In news: Dibru-Saikhowa National Park (DSNP)

    The Oil India Ltd (OIL) leak in Assam has contaminated water bodies that flow into the Maguri Motapung Beel, a large wetland, and the Dibru-Saikhowa National Park (DSNP).

    Try this PYQ from CSP 2019:

    Q. Which of the following are in Agasthyamala Biosphere Reserve?

    (a) Neyyar, Peppara and Shendurney Wildlife Sanctuaries; and Kalakad Mundanthurai Tiger Reserve

    (b) Mudumalai, Sathyamangalam and Wayanad Wildlife Sanctuaries; and Silent Valley National Park

    (c) Kaundinya, Gundla Brahme-swaram and Papikonda Wildlife Sanctuaries; and Mukurthi National Park

    (d) Kawal and Sri Venkateswara Wildlife Sanctuaries; and Nagarjunasagar-Srisailam Tiger Reserve

    About Dibru-Saikhowa National Park

    • DSNP is a national park in Assam located in Dibrugarh and Tinsukia districts.
    • It was designated a Biosphere Reserve in July 1997 with an area of 765 sq.km.
    • The park is bounded by the Brahmaputra and Lohit Rivers in the north and Dibru river in the south.
    • It mainly consists of moist mixed semi-evergreen forests, moist mixed deciduous forests, canebrakes and grasslands.
    • It is the largest Salix swamp forest in north-eastern India, with a tropical monsoon climate with a hot and wet summer and cool and usually dry winter.

  • Species in news: Asian Koel

    Asian Koel, the state bird of Puducherry, is now breeding across Delhi-NCR.

    For such species, related question, always focus on their habitat, endemic area, IUCN/Wildlife Protection Acr status.

    Another caution: Imp birds in the news that are almost “Least Concerned” eg. Amur Falcon (Nagaland), Asian Koel

    Asian Koel

    IUCN status: Least Concerned

    • The Asian Koel (Eudynamys scolopaceus) is a member of the cuckoo order of birds, the Cuculiformes.
    • It is found in the Indian Subcontinent, China, and Southeast Asia.
    • It forms a superspecies with the closely related black-billed koels, Indian cuckoos, and Pacific koels which are sometimes treated as subspecies.
    • The Asian Koel like many of its related cuckoo kin is a brood parasite that lays its eggs in the nests of crows and other hosts, who raise its young.

    Key Features

    • Sexual dimorphism is evident, where males are a glossy black with a greenish sheen to their bodies and females are brown with white dots on their wings and heavy streaking on their head and throat.
    • Both sexes have strong long greenish bills and captivating ruby-red eyes.
    • In the bird world, the males are generally more pleasant looking than the females, considering they woo females.

  • Specie in news: Charru mussel (Mytella strigata)

    An invasive mussel native to the South and Central American coasts is spreading quickly in the backwaters of Kerala.

    Try this PYQ from CSP 2018:

    Q. Why is a plant called Prosopis juliflora often mentioned in news?

    (a) Its extract is widely used in cosmetics.

    (b) It tends to reduce the biodiversity in the area in which it grows

    (c) Its extract is used in the pesticides.

    (d) None of the above

    Charru mussel

    • The rapid spread of the Charru mussel (Mytella strigata) may have been triggered by Cyclone Ockhi which struck the region in 2017.
    • With a population as high as 11,384 per sq metre here, it has replaced the Asian green mussel (Perna Viridis) and the edible oyster Magallana bilineata (known locally as muringa).
    • Externally, the Charru mussel resembles the green and brown mussels (kallummekka in Malayalam) but is much smaller in size. Its colour varies from black to brown, purple or dark green.
    • Surveys show the presence of the Charru mussel in the Kadinamkulam, Paravur, Edava-Nadayara, Ashtamudi, Kayamkulam, Vembanad, Chettuva and Ponnani estuaries/backwaters.
    • Ashtamudi Lake, a Ramsar site in Kollam district, remains the worst-hit.

    Threats posed

    • Though this smaller mussel is edible, the overall economic loss and impact on biodiversity are much bigger, it is pointed out.
    • It is throwing out other mussel and clam species and threatening the livelihoods of fishermen engaged in shrimp fisheries.

  • Species in news: Dugong

    The dugong, commonly known as the sea cow, is fighting for its survival in Indian waters experts have said on the eve of ‘World Dugong Day’ on May 28, 2020.

    Try this question from CSP 2015:

    Q) With reference to ‘dugong’, a mammal found in India, which of the following statements is/are correct?

    1) It is a herbivorous marine animal.

    2) It is found along the entire coast of India

    3) It is given legal protection under Schedule 1 of the Wildlife (Protection) Act, 1972.

    Select the correct answer using the code given below.
    (a) 1 and 2
    (b) 2 only
    (c) 1 and 3
    (d) 3 only

    Dugong

    • Dugongs are mammals, which means they give birth to live young and then produce milk and nurse them.
    • It is the flagship animal of Gulf of Mannar Marine National Park.
    • Once the female is pregnant, she will carry the unborn baby, called a foetus for 12-14 months before giving birth.
    • Female dugongs give birth underwater to a single calf at three to seven-year intervals.
    • Dugongs graze on seagrass, especially young shoots and roots in shallow coastal waters. They can consume up to 40 kilograms of seagrass in a day.
    • Dugongs are an IUCN Endangered marine species like sea turtles, seahorses, sea cucumbers and others.
    • They are protected in India under Schedule I of the Wild (Life) Protection Act, 1972.

    Threats to dugongs

    • Human activities such as the destruction and modification of habitat, pollution, rampant illegal fishing activities, vessel strikes, unsustainable hunting or poaching and unplanned tourism are the main threats to dugongs.
    • The loss of seagrass beds due to ocean floor trawling was the most important factor behind dwindling dugong populations in many parts of the world.

    Why needs urgent attention?

    • There were just 250 dugongs in the Gulf of Mannar in Tamil Nadu, the Andaman and Nicobar Islands and the Gulf of Kutch in Gujarat according to the 2013 survey report of the Zoological Survey of India (ZSI).
    • Hundreds of dugongs inhabited waters off the Odisha, West Bengal and Andhra Pradesh coasts two centuries back. But they are extinct in these areas now, he added.
    • Seagrass in Odisha’s Chilika Lake is a proper habitat for dugongs. However, there is not an extant population in Chilika.

    Other facts:

    • The 13th CoP of the Convention on the Conservation of Migratory Species of Wild Animals (CMS), an environmental treaty under the aegis of the UNEP, was hosted by India this year at Gandhinagar in Gujarat.
    • India is a signatory to the CMS since 1983.
    • India has signed non-legally binding Memorandums of Understanding with CMS on the conservation and management of Siberian Cranes (1998), Marine Turtles (2007), Dugongs (2008) and Raptors (2016).
    • Proper conservation is the only way to save dugongs from extinction. Conservation in other places like Australia has seen their population crossing 85,000.

  • [pib] L7 Quadricycle category for BS VI

    The Ministry of Road Transport and Highways has issued a notification regarding the emission norms for L7 (Quadricycle) category for BS-VI.

    Practice question for Mains:

    Q. What are Bharat Stage Emission Standards (BSES)? Discuss how the early implementation of BS-VI norms will help curb vehicular pollution in India.

    What is Quadricycle Vehicle verification?

    • The quadricycle is a European Union vehicle category for four-wheeled microcars, which allows these vehicles to be designed to less stringent requirements when compared to regular cars.
    • Quadricycles are defined by limitations in terms of weight, engine power and speed.
    • There are two categories of quadricycles: light quadricycles (L6e) and heavy quadricycles (L7e)

    What are the new notified norms?

    • These norms are applicable from the date of notification.
    • This notification completes the process of BS-VI for all L, M and N category vehicles in India.
    • The emission norms are in line with EU with WMTC cycle.
    • The procedure for testing is laid down in Automotive Industry Standard (AIS) 137-Part 9.

    What is the WMTC cycle?

    • The World Motorcycle Test Cycle (WMTC) is a system of driving cycles used to measure fuel consumption and emissions in motorcycles.
    • The methods are stipulated as part of the Global Technical Regulation established under the UN World Forum for Harmonization of Vehicle Regulations, also known as WP.29.

    Back2Basics:  Bharat Stage Norms

    Standard Reference Date of Implementation
    Bharat Stage II Euro 2 1 April 2005
    Bharat Stage III Euro 3 1 April 2010
    Bharat Stage IV Euro 4 1 April 2017
    Bharat Stage VI Euro 6 April 2020 with a mandate (proposed)

    Minutes of BS-VI

    • Carmakers would have to put three pieces of equipment — a DPF (diesel particulate filter), an SCR (selective catalytic reduction) system, and an LNT (Lean NOx trap) — to meet stringent BS-VI norms, all at the same time.
    • This is vital to curb both PM (particulate matter) and NOx (nitrogen oxides) emissions as mandated under the BS-VI norms.

    How is BS-VI Different from BS-IV?

    • The major difference between the existing BS-IV and forthcoming BS-VI norms is the presence of sulphur in the fuel.
    • While the BS-IV fuels contain 50 parts per million (ppm) sulphur, the BS-VI grade fuel only has 10 ppm sulphur content.
    • Also, the harmful NOx (nitrogen oxides) from diesel cars can be brought down by nearly 70%.
    • In the petrol cars, they can be reduced by 25%.
    • However, when we talk about air pollution, particulate matter like PM 2.5 and PM 10 are the most harmful components and the BS-VI will bring the cancer-causing particulate matter in diesel cars by a phenomenal 80%.

  • [pib] Initiatives launched on International Day of Biodiversity

    In a virtual celebration of the International Day for Biological Diversity 2020, Union Minister of Environment, Forest and Climate Change (MoEFCC) has launched key initiatives towards conservation of biodiversity.

    Possible prelim question:

    The ‘Not all Animals Migrate by Choice’ campaign recently seen in news is an initiative by __________.

    About the International Day for Biological Diversity

    • This Day is a United Nations-sanctioned international day for the promotion of biodiversity issues.
    • It is currently held on May 22.
    • The year 2020 is also the “Super Year for Biodiversity”, as the Strategic Plan for Biodiversity with 20 global Aichi targets adopted in 2010 ends in 2020.

    1) Biodiversity Samrakshan Internship Programme

    • The program proposes to engage 20 students with postgraduate degrees for a period of one year through an open, transparent, online competitive process.
    • It has the National Biodiversity Authority (NBA) and the UN Development Programme (UNDP) as a nodal agency.

     2) ‘Not all Animals Migrate by Choice’ campaign

    • It is a United Nations Environment Programme (UNEP) Campaign launched by the Wildlife Crime Control Bureau on Illegal Trafficking of Endangered Species.
    • It aims to curb illegal trade in wildlife which carries the risk of spreading dangerous pandemics.

    Back2Basics: Aichi Targets

    • The ‘Aichi Targets’ were adopted by the Convention on Biological Diversity (CBD) at its Nagoya conference.
    • The short term plan provides a set of 20 ambitious yet achievable targets, collectively known as the Aichi Targets.
    • The IUCN Species Programme provides advice to Parties, other governments and partners on the implementation of the Strategic Plan for Biodiversity and it’s Aichi Biodiversity Targets (2011 – 2020) and is also heavily involved in work towards the Target.