Trees: The critical infrastructure low-income neighborhoods lack

As the Pacific Northwest sweltered through a record-breaking heat wave last week, many residents here in America's least air-conditioned city sought relief under the shade of cedars and maples in city parks. But in some areas ...

Tornadoes tear though Tennessee, 25 dead

Tornadoes ripped through Tennessee early Tuesday, leaving at least 25 people dead, destroying buildings and toppling power lines hours before the southern US state voted in Super Tuesday primaries.

How we used drones to monitor coastal erosion in Ghana

Delta environments are low-lying and highly vulnerable to flooding and erosion by ocean waves. And these hazards are likely to increase as the world's climate changes and sea levels rise. Monitoring these hazards, and their ...

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