In the high plains of Bolivia, a man surveys the baked remains of what was the country’s second largest lake. For centuries locals rafted on the waters and lived off the fish and waterfowl of Lake Poopó. Once covering some 1,100 square miles, the lake had shrunk and resurged in the past—but in late 2015 it virtually vanished. In a coming issue Kenneth R. Weiss will report on its demise.
Some three-fourths of jobs in the global workforce are dependent on water, according to a 2016 UN report on water and development. Agriculture, fishing, energy, transport—if their water sources dry up, livelihoods do too.
Many lakes face a common menace: climate change. When its effects alter habitats, disrupt food webs, and spawn extreme weather, that can lead to people being “uprooted from their homes,” Weiss says. War drives much of today’s forced migration, but climate change also is a factor, he says.