Black carbon might influence melting of Gangotri Glacier

The already receding Gangotri glacier seems to have more bad news in store.  Black carbon concentration in the region increases by 400 times during summer, according to a study. The study suggests agricultural burning and forest fire as the reason behind this seasonal increase. This can trigger glacial melt because of the light-absorbing nature of black carbon.

Daily Current Affairs Quiz 2020

It was revealed by investigating the occasional high values of black carbon extricated, that the seasonal cycle of increase was significantly influenced by the emissions resulting from agriculture burning (in western part of the country), forest fires (along the Himalayan slopes) in summer, and to some extent by the contribution from long-range transport of pollutants in winter, depending the prevailing meteorological conditions.