Most of the extinctions were caused by deforestation in South America, a new study of endangered birds shows.

Governments are not on track to meet a goal of the 2015 Paris agreement of capping temperatures well below 2 degrees Celsius before the end of the century, a United Nations official said on Sunday ahead of climate-change talks in Bangkok this week.

As projects to restore woodlands accelerate, researchers are looking for ways to avoid repeating past failures.

Inspired by indigenous views of nature, a movement to grant a form of legal "personhood" to rivers is gaining some ground – a key step, advocates say, in reversing centuries of damage inflicted upon the world's waterways.

70% of vessels implicated in illegal, unreported or unregulated fishing are registered in tax havens, report finds