India, Feb. 4 -- New Delhi

Climate scientists have proposed a new accountability mechanism for countries as overshoot of 1.5degC warming over pre-industrial levels becomes imminent.

The accountability regime involves a carbon debt based approach where it is assessed how much of each nation's fair share of the global carbon budget has already been consumed, scientists from International Institute for Applied Systems Analysis (IIASA), Laxenburg in Austria; Potsdam Institute for Climate Impact Research; Grantham Institute - Climate Change and the Environment, London among others write in Nature journal.

Scientists have stressed the need for accountability, in view of the International Court of Justice's advisory opinion on "obligations of...