Environment Current Affairs - 2019
Latest Environment Current Affairs 2019 for UPSC Exams, Bank Exams, Civil Services, SSC and other Competitive Exams. Latest developments in Environment and Climate Change 2019 all important national updates in Environment events for the year 2019.
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The study of Technical University of Denmark (DTU) Space Lab published in the US journal Proceedings of the National Academy of Sciences on changes to Greenland’s ice sheet lists the following findings:
- Greenland’s melting ice caused sea levels to rise and resulted in the disappearance of glaciers four times faster in 2013 than in 2003 and is noticeable across the Arctic island.
- 111 cubic kilometres of ice disappeared per year in 2003 whereas 10 years later this figure had almost quadrupled to 428 cubic kilometres.
- Most of Greenland’s ice melt was observed on the ice cap, predominantly on the glaciers in the island’s northwest and southeast till 2003. But from 2003 to 2013 most of the ice loss was from Greenland’s southwest region, which is largely devoid of large glaciers.
- The ice is now melting from the surface mass and melting inland from the coastline. As a result, growing rivers of water are streaming into the ocean.
- The melting ice is attributed to rising land temperatures and in part to the fact that the ice comes into contact with waters that are increasingly warmer.
- As the atmosphere’s temperature gradually rises there would be an acceleration in the ice melt.
The study notes that while the amount of sea level increase varies from region to region, there was a worldwide increase by of average of 20 centimetres (about eight inches) in the 20th century and the sea level is currently rising by about 3.3 millimetres per year.
The British government has announced a research project, South Asian Nitrogen Hub to study nitrogen pollution in India and South Asia. The project led by UK’s Centre for Ecology and Hydrology will partner with 50 organisations from the UK and South Asia. The Indian Institutions partnering the study are:
- National Institute of Oceanography
- Guru Gobind Singh Indraprastha University
- Indian Institute of Tropical Meteorology
- Jawaharlal Nehru University
- Aligarh Muslim University
- National Physical Laboratory
- TERI University
The project aims to study the impact of different forms of nitrogen pollution, particularly looking at nitrogen in agriculture in eight countries of South Asia which includes India, Pakistan, Bangladesh, Nepal, Afghanistan, Sri Lanka, Bhutan and Maldives.
Pollutant Gases like ammonia (NH3) and nitrogen dioxide (NO2) are produced from chemical fertilizers, livestock manure, and burning fossil fuels and is connected to air pollution, biodiversity loss, the pollution of rivers and seas, ozone depletion, health, economy and livelihoods.
Gases like Ammonia and nitrogen dioxide can aggravate respiratory and heart conditions. Nitrous oxide is a greenhouse gas that depletes the ozone layer. Nitrate from chemical fertilisers, manure and industry pollutes rivers and seas, poses a health risk for humans, fish, coral and plant life.
Tags: Afghanistan • Aligarh Muslim University • Ammonia • Bangladesh • Bhutan • Guru Gobind Singh Indraprastha University • India • Indian Institute of Tropical Meteorology • Jawaharlal Nehru University • Maldives • National Institute of Oceanography • National Physical Laboratory • Nepal • Nitrogen oxide • Nitrogen Pollution • ozone • Pakistan • South Asia • South Asian Nitrogen Hub • Sri Lanka • TERI University • UK • UK Centre for Ecology and Hydrology