Despite cranking his car’s air conditioner to full-blast, Sandeep Sarma struggles not to sweat each morning as he creeps along the 21 miles of traffic-clogged road to his office in the Indian city of Bangalore. And lately, as record-breaking temperatures blanket the country, Sarma has noticed something else: Even through the glass of his car window, the summer sun leaves his right arm burnt and red. Compared to the 130 […]