
Human-caused climate change made Spain’s rainfall about 12% heavier and doubled the likelihood of a storm as intense as this week’s deluge of Valencia, according to a rapid but partial analysis Thursday by World Weather Attribution, a group of international scientists who study global warming’s role in extreme weather.
Monstrous flash floods in Spain claimed at least 158 lives, with 155 deaths confirmed in the eastern Valencia region alone. An unknown number of people are still missing and more victims could be found. Crews searched for bodies in stranded cars and sodden buildings Thursday.