Sea-level rise a major threat to India, other nations: WMO

Global mean sea-level increased by 0.20m between 1901 and 2018, with an average rate increase of 1.3 mm/ year between 1901 and 1971,1.9 mm/year between 1971 and 2006, and 3.7 mm/year between 2006 and 2018, WMO said in its report