Scientists have identified the Denmark Strait cataract, an underwater waterfall between Greenland and Iceland, as the world's largest. Plunging 11,500 ...

Some dolphins in Australia learn to wear a sponge on their beak – which allows them to safely forage through rocky seabeds ...

The multistage restoration of Copenhagen’s Old Stock Exchange is taking shape 15 months after a fire destroyed more than half ...

Satellite data suggests cloud darkening is responsible for much of the warming since 2001, and the good news is that it is a ...