The amount of plankton in the oceans has declined markedly over the last century, with warming identified as a cause.

The European Union and six member states have reached a deal on the experimental nuclear fusion reactor they are backing.

The cheetah, eradicated in India by hunting nearly a century ago, will run again in the country, as three sites are earmarked for its reintroduction.

Rescue teams in northeast China are working to retrieve 3,000 barrels of chemicals washed into a major river, state media says.