For one day in late April, all of the world’s 50 hottest cities were in India as the country experienced an extraordinarily severe heatwave . Air-quality monitoring platform AQI said that there was “no modern precedent” for this occurrence and that it was “not normal”. “This is not a normal April,” the platform said. “And it demands a serious, data-grounded reckoning.” “On April 27, something that has no modern precedent happened across global weather data. When AQI compiled its daily heat index, every single one of the world’s top hottest cities was located inside India ,” it explained. “Not one entry from the Middle East. Not one from sub-Saharan Africa. Not one from Australia. India occupied the entire list, from rank 1 to rank 50.” Across the 50 cities, the average peak temperature that day was 44.7C. Even the coolest maximum on the list – Solapur at 41.9C – “would be considered a public health emergency anywhere in Europe”, the platform noted.…