The past couple of months have been even hotter than usual in South Asia. In north-west and central India average temperatures in March and April were the highest since records began 122 years ago (see map). As a result, air-conditioners in homes and offices have been whirring away at levels not usually seen until mid-May. That has come on top of already rising demand after the easing of covid-19 restrictions and an uptick in economic activity. Since India highly depends on coal, how will the world go green soon ?

