Andes

An engraving of a Peruvian forest

The chloroquine chronicles: A history of the drug that conquered the world

Health & Medicine

The history of the antimalarial drug chloroquine has many lessons about the power — and geopolitics — of medicine.

A research team crossing an ice plateau in the Indian Himalayas faced risks of hidden crevasses, storms, avalanches and earthquakes.

Climate change research can be risky. But not doing it is even riskier.

Science
Bolivia’s dried-out Ajuan Khota dam, a reservoir affected by drought near La Paz, photographed on Nov. 17.

With melting glaciers and mining, Bolivia’s water is running dangerously low

Environment
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Lima taps ancient Andean canals to help fight its water shortage

Environment
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