Rare 'orchid of the falls' species declared extinct in the wild

A team of botanists from Guinea and the Royal Botanic Gardens, Kew in the UK have sounded the death knell for a plant in the Saxicolella genus that is endemic to a single location in Guinea. The sad discovery was made by ...

The salmon diaries: Life before and after Klamath Dam removal

When salmon return from the ocean to the Klamath River after the world's largest dam removal project ends this fall, they will regain access to 400 miles of historical spawning habitat their species has been cut off from ...

China tests a Stirling engine in orbit

The China National Space Agency (CNSA) has made considerable progress in recent years with the development of its Long March 5 (CZ-5) rocket and the completion of its Tiangong-3 space station. The agency also turned heads ...

Brazil uses dammed lake surface for floating solar panels

Two decades ago, a section of the Amazon rainforest was flooded for a dam that currently produces little electricity. Engineers now see that artificial lake as an ideal surface for floating solar panels.

Ethiopia's controversial mega-dam

Ethiopia's construction of a massive dam on a tributary of the Nile River, which the UN Security Council meets about on Thursday, is raising regional tensions notably with Egypt, which depends on the Nile for 97 percent of ...

US mega drought makes boating rough on Lake Mead

In the 15 years since Adam Dailey began boating on Lake Mead, the shoreline has receded hundreds of meters, the result of more than two decades of punishing drought that is drying out the western United States.

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