US formally removes Colorado River fish's endangered status

The humpback chub, a rare fish found only in the Colorado River basin, has been brought back from the brink of extinction after decades of protection, though work must continue to ensure its survival, federal authorities ...

Dams fuel malaria cases in Africa

While dams are critical to ensuring water and food security throughout Sub-Saharan Africa, small dams in particular pose a greater risk of malaria transmission, a study says.

Historic drought threatens Brazil's economy

The worst drought in nearly a century to hit two key regions in Brazil is wreaking havoc on hydroelectric dams and crops—and threatening the nascent pandemic recovery of Latin America's biggest economy.

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