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GS Paper: GS3-18.Conservation, Environmental Pollution and Degradation, Environmental Impact Assessment.

  • [pib] International Blue Flag hoisted at 8 beaches across the Country

    The Environment Minister has virtually hoisted the international blue flags in 8 beaches across the country.

    Try this PYQ:

    Q. At one of the places in India, if you stand on the seashore and watch the sea, you will find that the seawater recedes from the shoreline a few kilometers and comes back to the shore, twice a day, and you can actually walk on the seafloor when the water recedes. This unique phenomenon is seen at:

    (a) Bhavnagar

    (b) Bheemunipatnam

    (c) Chandipur

    (d) Nagapattinam

    About Blue Flag Certification

    • This Certification is accorded by an international agency “Foundation for Environment Education, Denmark” based on 33 stringent criteria in four major heads i.e.
    1. Environmental Education and Information,
    2. Bathing Water Quality,
    3. Environment Management and Conservation and
    4. Safety and Services on the beaches.
    • It started in France in 1985 and has been implemented in Europe since 1987, and in areas outside Europe since 2001 when South Africa joined.
    • Japan and South Korea are the only countries in South and southeastern Asia to have Blue Flag beaches.
    • Spain tops the list with 566 such beaches; Greece and France follow with 515 and 395, respectively.

    Which are the 8 beaches?

    The beaches where the International Blue Flags were hoisted are:

    1. Kappad (Kerala)
    2. Shivrajpur (Gujarat)
    3. Ghoghla (Diu)
    4. Kasarkod and
    5. Padubidri (Karnataka)
    6. Rushikonda (Andhra Pradesh)
    7. Golden (Odisha) and
    8. Radhanagar (Andaman & Nicobar Islands)

  • Species in news: Wild Sun Rose (Portulaca Laljii)

    Botanists have discovered a new species of wild Sun Rose from the Eastern Ghats in India.

    Try this PYQ from CSP 2018:

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

    Portulaca Laljii

    • The new species named Portulaca laljii was discovered from the Prakasam district of Andhra Pradesh.
    • It has unique features such as a tuberous root, no hair in its leaf axils, a reddish-pink flower, prolate-shaped fruits, and copper brown seeds without luster.
    • Portulaca Laljii has been named to honor the contribution of Lal Ji Singh, an eminent botanist of the Botanical Survey of India.
    • The species has been placed under the ‘Data Deficient’ category of the IUCN List of Threatened Species because very little information is available about the population of the species.

    Morphological features

    • These morphological features distinguish the species from other species of the genus Portulaca.
    • The flowers, which are reddish-pink in color, are very minute, at about 0.5mm.
    • The plant was found growing in rocky crevices at an altitude of about 1,800 meters above mean sea level, very close to the ground, at about less than 10 cm.
    • The plants belonging genus Portulaca are classified in the category Sun Rose because they flower in bright sunshine.
    • The genus was described by Linnaeus in 1753 as a type genus of the flowering plant family Portulacaceae.

  • [pib] Tso Kar Wetland Complex

    India has added Tso Kar Wetland Complex in Ladakh as its 42nd Ramsar site, which is a second one in the Union Territory (UT) of Ladakh. With this, India now has forty-two Ramsar sites.

    Try this PYQ:

    In which one among the following categories of protected areas in India are local people not allowed to collect and use the biomass?

    (a) Biosphere reserves

    (b) National parks

    (c) Wetlands declared under Ramsar convention

    (d) Wildlife sanctuaries

    Tso Kar Wetland Complex

    • It is a high-altitude wetland complex, consisting of two principal waterbodies, Startsapuk Tso, a freshwater lake of about 438 hectares to the south, and Tso Kar itself, a hypersaline lake of 1800 hectares to the north.
    • It is situated in the Changthang region of Ladakh.
    • It is called Tso Kar, meaning white lake, because of the white salt efflorescence found on the margins due to the evaporation of highly saline water.

    Ecological significance

    • Wetlands provide a wide range of important resources and ecosystem services such as food, water, fibre, groundwater recharge, water purification, flood moderation, erosion control and climate regulation.
    • They are, in fact, a major source of water and our main supply of freshwater comes from an array of wetlands which help soak rainfall and recharge groundwater.
    • The Tso Kar Basin is an A1 Category Important Bird Area (IBA) as per BirdLife International and a key staging site in the Central Asian Flyway.
    • The site is also one of the most important breeding areas of the Black-necked Crane (Grus nigricollis) in India.

    Back2Basics: Wetlands

    • A wetland is a distinct ecosystem that is flooded by water, either permanently or seasonally, where oxygen-free processes prevail.
    • The primary factor that distinguishes wetlands from other landforms or water bodies is the characteristic vegetation of aquatic plants, adapted to the unique hydric soil.
    • Wetlands provide a wide range of important resources and ecosystem services such as food, water, fibre, groundwater recharge, water purification, flood moderation, erosion control and climate regulation.

    What is the Ramsar Convention?

    • The Ramsar Convention on Wetlands of International Importance Especially as Waterfowl Habitat is a treaty for the conservation and sustainable use of such sites.
    • The convention, signed in 1971 in the Iranian city of Ramsar, is one of the oldest inter-governmental accords for preserving the ecological character of wetlands.
    • Also known as the Convention on Wetlands, it aims to develop a global network of wetlands for the conservation of biological diversity and for sustaining human life.
    • Over 170 countries are party to the Ramsar Convention and over 2,000 designated sites covering over 20 crore hectares have been recognised under it.

  • Five years since Paris Agreement, an opportunity to build back better

    This article by the Ambassador of the European Union underscores the need for implementation and action on the commitments made in the Paris Agreement to deal with climate change.

    EU’s commitment to implement Paris Agreement

    • In December 2019, the European Commission launched the European Green Deal — roadmap to achieve climate neutrality in the EU by 2050.
    •  “Next Generation EU” recovery package and our next long-term budget earmark more than half a trillion euros to address climate change.
    • Recently  EU leaders unanimously agreed on the 2030 target of reducing greenhouse gas emissions by at least 55% compared to 1990 levels.

    Impact on low carbon technologies

    • These actions and commitments of the EU towards Paris Agreement will further bring down the costs of low carbon technologies.
    • The cost of solar photovoltaics has already declined by 82% between 2010 and 2019.
    • Achieving the 55% target will even help us to save €100 billion in the next decade and up to €3 trillion by 2050.

    EU working with India on climate actions

    • No government can tackle climate change alone.
    •  India is a key player in this global endeavour.
    • The rapid development of solar and wind energy in India in the last few years is a good example of the action needed worldwide.
    • India has taken a number of very significant flagship initiatives such as the International Solar Alliance, the Coalition for Disaster Resilient Infrastructure and the Leadership Group for Industry Transition.
    • India and Team Europe are engaged to make a success of the forthcoming international gatherings: COP 26 in Glasgow on climate change and COP 15 in Kunming on biodiversity.

    Way forward

    • The international community should come forward with clear strategies for net-zero emissions and to enhance the global level of ambition for 2030.
    • Our global, regional, national, local and individual recovery plans are an opportunity to ‘build back better’.
    • We will also need to foster small individual actions to attain a big collective impact.

    Conclusion

    With climate neutrality as our goal, the world should mobilise its best scientists, business people, policymakers, academics, civil society actors and citizens to protect together something we all share beyond borders and species: our planet.

  • Firefly Bird Diverters’ to save the Great Indian Bustard (GIB)

    The Environment Ministry along with the Wildlife Conservation Society (WCS) India has come up with a unique initiative a “firefly bird diverter” for overhead power lines in areas where Great Indian Bustard (GIB) populations are found in the wild.

    Try this PYQ:

    Q.Which one of the following groups of animals belongs to the category of endangered species?

    (a) Great Indian Bustard, Musk Deer, Red Panda, Asiatic Wild Ass

    (b) Kashmir Stag, Cheetah, Blue Bull, Great Indian Bustard.

    (c) Snow Leopard, Swamp Deer, Rhesus Monkey, Saras (Crane)

    (d) Lion Tailed Macaque, Blue Bull, Hanuman Langur, Cheetah

    Great Indian Bustard

    • The GIB is one of the heaviest flying birds and can weigh up to 15 kg which grows up to one metre in height.
    • In July 2011, the bird was categorised as “critically endangered” by the International Union for Conservation of Nature (IUCN).
    • It is considered the flagship grassland species, representing the health of the grassland ecology.
    • For long, conservationists have been demanding to secure this population, warning that the bird might get extinct in the coming decades.
    • It would become the first mega species to disappear from India after Cheetah in recent times.
    • Till the 1980s, about 1,500-2,000 Great Indian Bustards were spread throughout the western half of India, spanning eleven states.
    • However, with rampant hunting and declining grasslands, their population dwindled.

    Bird Diverters

    • The diverters are called fireflies because they look like fireflies from a distance, shining on power lines in the night.
    • GIBs are one of the heaviest flying birds in India. Therefore, when they encounter these wires, they are unable to change the direction of their flight.
    • Death is most cases is due to impact with the wires and not due to electrocution.
    • The diverter will not only save GIB but other species of large birds, including migratory birds.

    Why such a move?

    • GIB is one of the most critically threatened species in India, with less than 150 birds left in the wild.
    • A report has pointed out that power lines, especially high-voltage transmission lines with multiple overhead wires, are the most important current threat for GIBs in the Thar region.
    • They are causing unsustainably high mortality in about 15% of their population.

  • Bihar to change Kosi’s course to save the ancient site

    The Bihar government will try to divert the course of the mighty Kosi River in Bhagalpur district to save an archaeological site discovered recently.

    Tap to read more about the Himalayan Drainage System:

    Drainage System | Part 3

    Kosi River: The Sorrow of Bihar

    • The Kosi is a trans-boundary river which flows through Tibet, Nepal and India.
    • The river crosses into northern Bihar, India where it branches into distributaries before joining the Ganges near Kursela in Katihar district.
    • Its unstable nature has been attributed course changes and the heavy silt it carries during the monsoon season, and flooding in India has extreme effects.
    • It is also known as the “Sorrow of Bihar” as the annual floods affect about 21,000 km2 of fertile agricultural lands thereby disturbing the rural economy.

    Why change its course?

    • Several priceless artefacts have been found at the Guwaradih village in Naugachhia sub-division of Bhagalpur district during the excavation of a mound.
    • These items could be 2,500-years-old and could be of interest for historians if conserved.
    • The historical sites are facing threats from the Kosi floods.
    • The Kosi currently flows around 300-400 metres from the site, while its old course is about two kilometres from the village.

    Threats posed by the move

    • Environmentalists have warned that changing the Kosi’s course could be disastrous for Bihar as seen in 2008.
    • At that time, the river had breached its mud embankments at Kushaha in Nepal.
    • The Kosi frequently changes its course naturally. If its course is artificially changed, it will cause floods and erosion in new areas, leading to massive displacement of people.
    • It then caused extensive damage to life and property downstream in five densely populated districts of northeast Bihar.
    • Some 500 people were killed and four million rendered homeless.

  • [pib] Leopard Population in India

    The Ministry of Environment, Forest and Climate Change has released the Status of Leopards Report.

    Confused over Leopard and Cheetah?

    The most common difference between these two animals is the patterns on their coat. At first glance, it may look like they both have spots, but in actual fact, a leopard has rosettes which are rose-like markings, and cheetahs have a solid round or oval spot shape.

    Indian Leopards

    • The Indian leopard (Panthera pardus fusca) is a leopard subspecies widely distributed on the Indian subcontinent.
    • It is one of the big cats occurring on the Indian subcontinent, apart from the Asiatic lion, Bengal tiger, snow leopard and clouded leopard.
    • It is listed as Vulnerable on the IUCN Red List because populations have declined following habitat loss and fragmentation, poaching for the illegal trade of skins and body parts.

    Leopards in India

    • India now has 12,852 leopards as compared to the previous estimate of 7910 conducted 2014.
    • More than 60% increase in population has been recorded.
    • The States of Madhya Pradesh, Karnataka and Maharashtra recorded the highest leopard estimates at 3,421, 1,783 and 1,690 respectively.
    • India’s world record tiger survey also estimated the population of leopards and the tiger range was found a home to 12,852 (12,172-13,535) leopards.

    Significance

    • The increase in Tiger, Lion & Leopards numbers over the last few years is a testimony to the conservation efforts and of the fledgeling wildlife & biodiversity of the country.

  • E20 Fuel to Cut Vehicular Emissions

    The government has proposed the adoption of E20 fuel — a blend of 20% of ethanol and gasoline — as an automobile fuel in order to reduce vehicular emissions as well as the country’s oil import bill.

    E20 Fuel

    • E20 is a blend of 20% ethanol with gasoline (petrol) and can be used as an alternative to the fuels currently available.
    • The government is looking at the adoption of mass emission standards for this fuel for transport application.
    • Additionally, it also wishes to facilitate the development of E20 compliant vehicles.
    • The government believes that the E20 blend will not only curb vehicle emissions but help reduce the country’s oil import bill.

    Ethanol – Pros and Cons

    • Ethanol is a common by-product that comes from agricultural feedstock like corn, hemp, potato, etc. It can be used as a bio-fuel in Flexi-fuel vehicles.
    • It is greener than gasoline because the corn and crop plantations absorb carbon dioxide from the atmosphere as they grow.
    • While the fuel still releases CO2 when you burn it, the net increase is comparatively lower.
    • However, ethanol is less efficient as a fuel. It has lower energy content than energy-rich gasoline and diesel.
    • The rule delivers less power when burned, which in return results in more fuel consumption and lower mileage.
    • Additionally, blends over E20 (20% ethanol) is highly corrosive for older vehicles as the alcohol can break down old rubber seals and can damage engines.

    Vehicle compatibility

    • It added the compatibility of vehicles with the percentage of ethanol in the blend would be defined by the vehicle manufacturer, which would have to be displayed on the vehicle with a sticker.
    • Ethanol is a biofuel and a common by-product of biomass left by agricultural feedstock such as corn, sugarcane, hemp, potato, etc.

  • Species in news: Himalayan trillium

    The Himalayan trillium (Trillium govanianum), a common herb of the Himalayas was declared ‘endangered’ by the International Union for Conservation of Nature (IUCN) last week.

    Try this MCQ:

    Q.Recently, there was a growing awareness in our country about the importance of Himalayan nettle (Girardinia diversifolia) because it is found to be a sustainable source of-

    (a) Anti-malarial drug

    (b) Bio-diesel

    (c) Pulp for paper industry

    (d) Textile fibre

    Himalayan trillium

    • In recent years, the plant has become one of the most traded commercial plants of the Himalayan region, due to its high medicinal quality.
    • It is found in temperate and sub-alpine zones of the Himalayas, at an altitude from 2,400-4,000 metres above sea level.
    • Their existence has also been traced across India, Bhutan, Nepal, China, Afghanistan and Pakistan.
    • In India, it is found in four states only- Himachal Pradesh, Jammu and Kashmir, Sikkim, and Uttarakhand.
    • Often called Nagchatri, in local areas this herb grows to a height of 15-20 cm.

    Various applications

    • It has been used in traditional medicine to cure diseases like dysentery, wounds, skin boils, inflammation, sepsis, as well as menstrual and sexual disorders.
    • Recent experiments have shown that the rhizome of the herb is a source of steroidal saponins and can be used as an anti-cancer and anti-ageing agent.
    • This increased its market value and has now become an easy target for poachers.

  • Species in news: Indian bison (Gaur)

    A gaur (Indian bison) strayed into a residential area in Pune city and allegedly died while being captured. This has depicted another ugly face of the man-animal conflicts.

    Try this PYQ:                      

    Q.Which one of the following groups of animals belongs to the category of endangered species?

    (a) Great Indian Bustard, Musk Deer, Red Panda, Asiatic Wild Ass

    (b) Kashmir Stag, Cheetah, Blue Bull, Great Indian Bustard.

    (c) Snow Leopard, Swamp Deer, Rhesus Monkey, Saras (Crane)

    (d) Lion Tailed Macaque, Blue Bull, Hanuman Langur, Cheetah

    Gaur/ Indian Bison

    • The Indian bison are also known as Gaur, is native to South and Southeast Asia and has been listed as Vulnerable on the IUCN Red List since 1986.
    • The global population has been estimated at maximum 21,000 mature individuals by 2016.
    • It declined by more than 70% during the last three generations, and is extinct in Sri Lanka and probably also in Bangladesh.
    • Populations in well-protected areas are stable and increasing.
    • The Western Ghats and their outflanking hills in southern India constitute one of the most extensive extant strongholds of gaur, in particular in the Wayanad – Nagarhole – Mudumalai – Bandipur complex.