All of the world’s 50 hottest cities in late April were in one country: India

File. Rickshawpullers rest during a severe heatwave in Delhi, India - (PA)

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”.