Prof Mavalankar ought to know. In May 2010, he discovered that town of Ahmedabad had recorded 800 all-cause extra deaths – a measure of what number of extra individuals are dying than anticipated, in comparison with the last few years – throughout a sweltering week of record-breaking temperatures. It was clear, he stated, that warmth was killing lots of people. He stated researchers in contrast the full variety of deaths within the metropolis to the utmost temperature recorded on the day, and laid down three color coded alerts, with the crimson warning triggering above 45C.