Heatwave trends accelerate worldwide

The first comprehensive worldwide assessment of heatwaves down to regional levels has revealed that in nearly every part of the world heatwaves have been increasing in frequency and duration since the 1950s.

Water hyacinth pest chokes Iraq's vital waterways

The broad leaves and delicate purple flowers floating on the Euphrates look breathtaking—but they are suffocating the waterways of Iraq, celebrated as the "land of the two rivers".

New Argentine fossils uncover history of celebrated conifer group

Newly unearthed, surprisingly well-preserved conifer fossils from Patagonia, Argentina, show that an endangered and celebrated group of tropical West Pacific trees has roots in the ancient supercontinent that once comprised ...

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