Kerala flood of 2018 in list of world’s worst extreme weather events in five years
The HinduThe flood that devastated Kerala in August 2018, following unprecedented heavy monsoon rain, was among the five major extreme flooding events in the world between 2015 and 2019, the hottest five-year period on record, according to the World Meteorological Organisation. The heat wave in many parts of India in May-June 2015, the floods in the North-eastern States in August 2017, and the devastating dust storm in Uttar Pradesh and Rajasthan in May 2018 are also listed from India among 35 extreme events caused by climate change during that period in a report released by the WMO on September 23. Ice melt and global warming The report also discusses the issue of ice melt as an indicator of global warming, and the continuing decrease in the extent of summer and winter sea ice in the Arctic and the Antarctic regions, the significant changes in the Greenland and Antarctic ice sheets in recent decades, the record ice mass loss that glaciers are experiencing, and the clear downward trend in spring snow cover in the Northern hemisphere. Carbon dioxide stays in the atmosphere and the oceans for centuries, and will continue to cause a rise in temperature, in turn leading to the melting of ice, the retreat of glaciers, rise in sea level, ocean temperatures and extreme weather events. Over the five-year period 2014-2019, the rate of global mean sea-level rise was 5 mm per year, “corresponding to a volume of water discharged by the Amazon river in about three months”, the report said.