Thousands more evacuated as Greece 'at war' with forest fires

Authorities evacuated nearly 2,500 people from the Greek island of Corfu on Monday as the prime minister warned that the heat-battered nation was "at war" with several wildfires and spoke of three difficult days ahead.

Weeds grow at London's Chelsea Flower Show

Nettles, dandelions, brambles: weeds—once considered a scourge—are taking pride of place at London's Chelsea Flower Show as gardeners concern themselves more than ever with biodiversity and sustainable development.

Why banning hikes to the world's tallest tree will never work

The National Park Service is trying to preserve the world's tallest tree by banning hikes to it. But this approach will never completely work since the location of the 380-foot redwood is an open secret. Instagrammers and ...

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