Melting of Antarctic ice sheet demonstrates importance of Paris climate agreement

A study of West Antarctic Ice Sheet (WAIS) in a 2 degree Celcius warmer world suggest that region could be highly sensitive for future warming and thus demonstrates importance of meeting Paris climate agreement. According to research, high-resolution environmental changes and melting ice have been recorded from Patriot Hills Blue Ice Area at periphery of WAIS, which revealed a pause in ice record beginning approximately 1,30,000 years ago, immediately prior to Last Interglacial (LIG) period, 1,29,000-1,16,000 years ago.  

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Researchers have long speculated that melting of WAIS may have contributed to global sea-level rise during Last Interglacial period, however, re is direct physical evidence to prove that claim. pause in ice record beginning approximately 1,30,000 years ago, prior to LIG, suggests a substantial loss of ice mass which coincides with a well-documentated rise in ocean temperatures, suggesting that ocean warming led to ice sheet loss. According to research, Antarctic contributed to a global sea-level rise of around 2-6 metres in first 1,000 years of LIG. 

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Paris climate agreement

Paris climate agreement is important because just last week researchers at Esperanza base in rrn tip of Antarctic peninsula recorded a temperature of 18.3-degree Celsius, highest ever on record. As per media reports, World Meteorological Departement (WMD) spokeswoman Clare Nullis said that it wasn’t a figure that would be rmal in Antarctica, t even in summers. According to reports, temperature has beaten previous record of 17.5-degree Celcius, which was recorded in 2015 and was a major setback at that time. Weeks ago, scientists me yet ar alarming discovery when y recorded water temperatures at 2-degree Celsius in usually frigid environment of Antarctica. 

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Paris Agreement that came into effect in vember 2016, is an agreement within United Nations Framework Convention on Climate Change (UNFCCC) that requires signatories to keep increase in global temperature to well below 2-degree Celsius above pre-industrial levels. As per reports, currently, 188 countries part of UNFCCC have become a party to it, except for Iran and Turkey. In June 2017, United States President Donald Trump anunced his intention to withdraw from agreement, which was signed by Obama ministration in April 2016. On vember 4, 2019, Trump ministration gave a formal tice of intention to withdraw, which takes 12 months to take effect. So, earliest possible effective withdrawal date by United States will be after vember 4, 2020.

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