Global Warming Current Affairs - 2020

GoI Report: Average Temperature in India to raise by 4.4 degree Celsius

The Ministry of Earth Science recently released its report “Assessment of Climate Change over Indian Region”. According to the report, the average surface temperature of India could increase up to 4.4 degree Celsius by the end of 2100 as compared to the temperature between 1976 and 2005.

Climate Forcing

The report says that with the RCP (Representative Concentration Pathway) increasing to 4.5, the temperature of India could rise to 2.4 degree Celsius.

The Representative Concentration Pathway calculates Radiative Forcing or Climate Forcing. Climate Forcing is the difference between sunlight absorbed by the Earth and the energy that is radiated back from the earth.

Key Findings of the report

According to the report, the frequency of warm days and warm nights are to increase by 55% and 70% respectively as compared to 1976-2005. The heat waves in the country are expected to increase by 3 to 4 times.

The average temperature of the country increased by 0.7 degree Celsius as compared to the period between 1900 and 2018. The increase in temperature has been largely associated with global warming.  The report predicts that the average temperature in the Hindukush-Himalayan region could increase by 5.2 degree Celsius.

Amery Ice Shelf: Increase by 24% by 2021

The National Centre for Polar and Ocean Research has predicted that the Amery Ice Shelf is to expand 24% by 2021. The Ice Shelf would expand another 24% by 2026.

Highlights

The NCPOR observations is based on 16 year-long satellite observations. This covered 60,000 sq km of the Amery Ice Shelf.

Amery Ice Shelf

Amery Ice Shelf is located in the east coast of Antarctica. It is one of the largest ice shelf in the world. The mass balance and dynamics of the ice shelf help in understanding the changes in global climate scenario.

About the study

The Amery Ice Shelf extended by about 550 metres in 2017, 1470 metres in 2018 and 2200 metres in 2019. If the extension of the ice shelf continues, the positions will coincide with actual boundary conditions.

National Centre for Polar and Ocean Research

The NCPOR is the Indian Institution that performs country’s research activities in Polar and southern oceans. The institute is located in Goa. It performs geoscientific surveys in the extended continental shelf, deep-sea drilling in Arabian Sea basin and also explore the ocean for resources such as multi-metal sulphides, gas hydrates, etc.