Environment: Point-Wise Current-Affairs/GS Articles 2020 (Including PIB)- Download PDF

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  • Aug 9, 2020
  • 1 Vizag Gas Leak [ Environment/Ecology, Down-to-Earth ]

    Vizag Gas Leak

    • In addition to gas leak in Vizag on 7th May, two boilers also exploded at NLC India Limited’s thermal power station at Neyveli, Tamil Nadu.

    • On 6th May, a gas leak accident took place at a paper mill in Raigarh, Chhattisgarh.

    • What’s common in these accidents is t

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  • 2 Green Policies Good for Economy Too [ Economy, Environment/Ecology, Down-to-Earth ]

    Green Policies Good for Economy Too

    • The economies are shut down due to coronavirus pandemic.

    • According to a study by Oxford University, Countries across the world can boost their economies better by including climate friendly policies in recovery package.

    • So inclusion of clima

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  • Aug 5, 2020
  • 1 Aerosols Levels Lowest in Decades and Healthcare Workers at a Premium [ Environment/Ecology, Down-to-Earth ]

    Aerosols Levels Lowest in Decades

    • As per the satellite data published by the US Space agency NASA, Aerosol levels in north India or along the Indo-Gangetic Plains are at a 20-year-low for this time of the year.

    • An aerosol can be defined as the suspension of fine solid particles

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  • 2 Brahmaputra, the Unquiet River [ Environment/Ecology, Down-to-Earth ]

    Brahmaputra, the Unquiet River

    • River Brahmaputra has changed over the years due to changes brought in by economic and natural forces.

    • It originates in southern Tibet and becomes the Brahmaputra upon entering Assam through Arunachal Pradesh.

    • Earthquake in 1950 brought changes i

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  • 3 Damned by Old Age [ Environment/Ecology, Down-to-Earth ]

    Damned by Old Age

    • Ageing dams and shrinking canal command area are the blind spots in the management of impending water and food crisis.

    • India has 5,264 large dams along with thousands of medium and minor dams.

    • Portland Cement Association (PCA):

    US based non-profit organizat

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  • 4 Patent Pool to Fight the Pandemic and Ethiopia’S Danakali Depression [ Environment/Ecology, Down-to-Earth ]

    Patent Pool to Fight the Pandemic

    • A pool of rights on voluntary basis to all technologies.

    • A global pool of rights to all technologies useful in fighting COVID-19 is crucial to ensure equitable access.

    • These technologies are being useful in the detection, prevention, control a

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  • 5 Male Ring –Tailed Lemurs (Lemur Catta) and German Survey-Reducing Car Ownership [ Economy, Environment/Ecology, Space/ISRO ]

    Male Ring –Tailed Lemurs (Lemur Catta)

    • As per the latest Japan research studies tailed lemurs in Madagascar dab scents from wrist glands on their tails to mark territory and attract mates.

    • The study has also revealed that as the males’ testosterone levels increased, wrist secr

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  • Jul 27, 2020
  • 1 Other Tribes in India [ Education, Economy, Environment/Ecology ]

    Tribes 1

    • Bagri Tribes

    • Banjara Tribes

    • Ahir Tribes

    • Asur Tribes

    • Bodo tribes

    • Hmar Tribes

    • Bhutia Tribes

    • Andamanese Tribes

    Tribes 2

    • Khasi Tribes

    • Bhil Tribes

    • Gaddi Tribes

    • Dhodia Tribes

    • Angami Tribes

    • Chakmas Tribe

    • Oran Tribe

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  • 2 Gujjars [ Education, Economy, Environment/Ecology ]

    • Mainly inhabit in the states of Jammu and Kashmir, Himachal Pradesh, Haryana, Punjab, Uttarakhand, Delhi, Gujarat, Rajasthan and Maharashtra.

    • Alternative spellings include Gurjara, Gujar, Gurjjar, Gujjar and Gojar.

    • They mainly follow Hindu and Muslim religions.

    • They regard th

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  • Jul 11, 2020
  • 1 Gullible Creatures of the Sea [ Environment/Ecology, Down-to-Earth ]

    Gullible Creatures of the Sea

    • Plastic pollution results in the death of a large number of marine animals.

    • According to a study conducted by Plymouth University, around 700 species are affected by marine pollution

    • Plastic pollution is estimated to cause death of at least 100 mil

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  • Jul 10, 2020
  • 1 Places Where Uranium Contamination in Ground Water [ Environment/Ecology ]

    Uranium Contamination in Ground Water

    • Recently, a report stated that in some states and UTs, the concentration of Uranium has been found to be above 30 micro grams per liter in the country.

    • The report was brought out by Duke University, USA in association with Central Ground Wa

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  • Jul 7, 2020
  • 1 COVID-19: SARS-CoV-2, Tests and Great Apes [ Economy, Health, Environment/Ecology, Down-to-Earth ]

    • Prime Minister on March 24 announced a 21 days lockdown in the country to deal with COVID-19.

    • In his message he said that lockdown is the only way to fight with COVID-19.

    • To ensure procurement of PPE (Personal Protective Equipments) for healthcare workers, ventilators etc. , t

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  • Jul 2, 2020
  • 1 NavIC: Features, Services, Mobile Compatibility, Geostationary and Geosynchronous Orbits [ Science/Technology, Environment/Ecology ]

    • IRNSS is an independent regional navigation satellite system designed to provide position information in the Indian region. The space segment consists of the IRNSS constellation of seven satellites, NavIC (Navigation with Indian Constellation) has three satellites are in suitabl

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  • 2 Situation in Sikkim and Some Important Asian Glacial Lakes [ Environment/Ecology ]

    • Several lakes have been formed due to melting of scores of glaciers in the Himalayan region.

    • The number of glacier lakes is further expected to increase due to global warming.

    • At the sametime, the size of the existing glacier lakes is also expected to expand further.

    • Huge amo

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  • 3 GLOFs and the Hindu Kush Himalaya [ Environment/Ecology ]

    • Moraine-dammed glacial lakes are common.

    • Numerous GLOF events have been traced back resulting in the failure of moraine dams.

    • With the rising volume of the glacial lake, the pressure on the dam containing it also rises.

    • They remain a persistent threat to downstream communitie

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  • 4 Glacial Lake Outburst Floods [ Environment/Ecology ]

    Glacial Lake Outburst Floods

    • A sudden release of water from a lake.

    • Also known as GLOF.

    • This is being fed by glacier melt that has formed at the side, in front, within, beneath or on the surface of a glacier.

    • Nearly 200 glacial lakes surround the Himalayan states, Uttarakhand

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  • 5 Global Coalition for Biodiversity Launched on World Wildlife Day [ Environment/Ecology, Down-to-Earth ]

    Global Coalition for Biodiversity Launched on World Wildlife Day

    • On World Wildlife Day 2020, ‘United for Biodiversity’ coalition has been launched by European Commission (EC).

    • The coalition will be made up of:

      • Zoos

      • Aquariums

      • Botanical gardens

      • National parks

      • Natural history m

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  • 6 Near Extinct Hard Ground Swamp Deer’S Revival in Kanha [ Environment/Ecology, Down-to-Earth ]

    Near Extinct Hard Ground Swamp Deer’s Revival in Kanha

    • Hard ground swamp deer also known as Barasingha is witnessing a revival in Kanha National Park.

    • Barasingha is the state animal of Madhya Pradesh.

    • Swamp deer was under the threat of extinction since a long time.

    • After almo

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  • Jun 26, 2020
  • 1 People Will Live with Limited Access to Water in Future [ Environment/Ecology ]

    People Will Live with Limited Access to Water in Future

    • Antonio Guterres, United Nation’s Secretary-General urged people to play a proactive role in dealing with the challenge of water shortage.

    • He also warned that around 3.5 - 4.4 billion people will be living with inadequate

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  • 2 Maharashtra’S Dam on Human River Threatens Tigers [ Environment/Ecology, Down-to-Earth ]

    Maharashtra’s Dam on Human River Threatens Tigers

    • Tadoba Andhari Tiger Reserve in Chandrapur district is Maharashtra’s largest reserve of tigers.

    • A dam is being proposed on the human river which can submerge more than 90 % of a 7 km forest area.

    • The project also falls in eco-s

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  • 3 Open Global Meet on Conservation of Migratory Species [ Environment/Ecology ]

    Open Global Meet on Conservation of Migratory Species

    • The 13th Conference of parties (COP) of the Convention on the Conservation of Migratory Species (CMS) of wild animals was held recently.

    • The conference was held in Gandhinagar, Gujarat from February 17 to 22.

    • CMS is an inte

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  • Jun 25, 2020
  • 1 Water Stress in India [ Environment/Ecology, Down-to-Earth ]

    Water Stress in India

    • Bengaluru is one of India’s highly water stressed districts.

    • It has become a hotspot of Union government’s concern under the initiative Jal Shakti Abhiyaan.

    • Bengaluru is under stress because of the depletion of water resources and polluted lakes.

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  • Jun 16, 2020
  • 1 RO Ban: TDS Below 500mg/litre, the National Green Tribunal to Ban the Use of RO purifiers. [ Environment/Ecology ]

    In areas where TDS value is below 500mg/litre, the National Green Tribunal has directed the Ministry of Environment and Forest to issue notification to ban the use of RO purifiers.

    • NGT also asked the government to sensitise public about the harmful effects of demineralized wate

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  • Jun 14, 2020
  • 1 Locust Attack: East Africa, West and South Asia [ Health, Environment/Ecology, Down-to-Earth ]

    East Africa, West and South Asia is facing disastrous locust invasion due to change in cyclonic pattern over the Arabian Sea. Now, Pakistan and Somalia have also declared ‘national emergencies’ due to the plague of locusts.

    • In December 2019, Gujarat also witnessed the attack of

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  • Jun 9, 2020
  • 1 Underwater Loudspeaker Can Help Recover Coral Reefs [ Science/Technology, Environment/Ecology, Bills ]

    The coral reefs are the major victim of climate change. This important component of our ecosystem is worst effected by continuous rising GHGs and rise in temperatures.

    • A recent research has come out with an innovative way to improve survival of coral reefs.

    • In the study, it wa

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  • May 17, 2020
  • 1 Pesticides Affecting DNA: List and Impact (Important) [ Health, Environment/Ecology ]

    Tea estate workers. Pesticide exposure could affect DNA

    Types of Pesticides

    Algaecides

    • Used for killing algae.

    • Slowing the growth of algae.

    Antimicrobials

    Control germs and microbes (bacteria and viruses).

    Biopesticides

    • Made of living things.

    • Found in nature.

    Desiccants

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  • 2 E-Cigarettes Ban in India: Right or Wrong [ Health, Environment/Ecology ]

    Health Ministry-Union government’s move to ban the sale of electronic cigarettes. A pre-emptive strike‖ before the new form of intoxication spreads. Companies- looking at India as an attractive market.

    E-Cigarettes

    • A battery-operated device.

    • Emits doses of vaporized nicotine o

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  • May 14, 2020
  • 1 Insect Pollination (Earliest Evidence): Problems, Issues and Solutions [ Science/Technology, Environment/Ecology ]

    First known instance of an insect. Pollinating a flower (99 million years ago).

    Types of Pollination

    Autogamy (Self-Pollination)

    • Pollen from the anthers of a flower is transferred to the stigma of the same flower.

    • Wheat, rice, pea etc are the examples.

    Geitonogamy

    • Pollen g

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  • 2 Climate Emergency and Environment: United Nations Environment Programme, Ice-Free Arctic and Paris Climate Agreement [ Environment/Ecology ]

    UN Annual Assessment-Calls for 7.6 % cut each year.

    UNEP (United Nations Environment Programme)

    • Global emissions need to fall by 7.6 % each year until 2030.

    • To limit global temperature rises to 1.5°C.

    • On an average emissions have risen 1.55 annually over the last decade.

    • 20

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  • 3 Environment: Air Pollution-Increasing Glaucoma [ Environment/Ecology ]

    Higher amounts of fine particulate matter. At least 6 % more chances of having glaucoma.

    Glaucoma

    • A group of eye conditions.

    • Damages the optic nerve.

    • Caused by an abnormally high pressure in ones eye.

    • Above age 60-Major cause of blindness.

    • Occurs at any age.

    • More common in

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  • May 13, 2020
  • 1 New Ramsar Sites in India [ Environment/Ecology, Down-to-Earth ]

    10 more wetlands announced under Ramsar Convention. Sites of “International importance”. Total number of Ramsar sites in India increased to 37. Till Dec 2019 India had 27 sites.

    • To develop and sustain a network of wetlands.

    • Maintain components of ecosystem and processes.

    • Wetl

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  • May 12, 2020
  • 1 Gottiprolu: trade centre has been unearthed by the Archaeological Survey of India (ASI) [ Environment/Ecology ]

    • At the Gottiprolu site in Andhra Pradesh a trade centre has been unearthed by the Archaeological Survey of India (ASI).

    • The trade centre of early historic period.

    • Site Gottiprolu lies on the right bank of a distributary of river Swarnamukhi, about 17 km east of Naidu pet and 8

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