Conservation

As the wild population falls to just 40 animals, captive breeding may be their last chance for survival

Intense human pressure on areas set aside for preservation could be threatening biodiversity

Reducing water consumption from power plants is a worthy conservation strategy, but the cost may outweigh the benefits compared with alternatives like desalinating saltwater

Exhaustive searchers have failed to turn up the lost Algerian species Adenocarpus faurei. Could other plants in the region also be extinct?

Hunting regulations in Sweden prohibit killing brown bear mothers in company of cubs—causing mama bears to care for their young longer. Jason G. Goldman reports.

Thanks to protective efforts in Russia, these critically endangered big cats have renewed hope of avoiding extinction

Urbanization is on the rise; so is the urban heat island effect—a situation that is worsening with the decline of tree cover in U.S. metropolitan areas

How much does electricity cost in your state? Where does it come from? Here's a chart

Rosewood is heavily smuggled, but resources to curb its trafficking are lacking

The race is on to exploit—and protect—the ocean floor

Government agencies have done a lot, but tighter budgets and increasing environmental stressors are making things tougher

How to incorporate solar and wind while keeping the electricity grid stable is a key question