UCI study also finds megacities affected most by uptick in extreme-heat events
While our planet’s average annual temperature has increased at a steady pace in recent decades, there has been an alarming jump in the severity of the hottest days of the year during that same period, with the most lethal effects in the world’s largest cities.
Engineers at the University of California, Irvine have learned that urban centers with more than 5 million inhabitants and parts of Eurasia and Australia have been hardest hit by the accelerated growth in short-term, extreme-heat events, resulting in lost lives, reduced agricultural productivity and damage to infrastructure.
In a paper appearing in the American Geophysical Union journal Earth’s Future, the researchers report that their analysis of temperature readings from the most recent 50- and 30-year periods rules out the possibility that natural climate variability is to blame for the mercury rising.
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