Water level lines appear on the shorelines of the Jacareí River Dam, part of the Cantareira reservoir system, during drought conditions in Joanopolis, Sao Paulo state.

Water level lines appear on the shorelines of the Jacareí River Dam, part of the Cantareira reservoir system, during drought conditions in Joanopolis, Sao Paulo state.

Photographer: Victor Moriyama/Bloomberg
Weather & Science

Sao Paulo Battles Drought and Floods Together in Climate Paradox

The combination of too much and too little rain is affecting businesses and millions of people.

Sao Paulo, one of the world’s largest metropolitan areas housing 21 million people, is living through its largest climate-induced stress test in more than a decade as deadly flash floods collide with a severe drought.

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Water in the region’s largest reservoir network is hovering at 32%, the lowest since the region endured its worst water crisis in 2014 and 2015, and is due to dip lower as the dry season approaches. Meanwhile, the Brazilian city has been battered in recent weeks by intense storms that have killed four people, including an elderly couple whose car was swept away by rushing water.