A new study of blue whales in the eastern Pacific has found that the population of the behemoths there has bounced back to near pre-whaling levels. But other populations of blues elsewhere are not doing nearly as well.
It likely wasn't the catastrophe some media outlets initially reported, but the disappearance in Antarctica of a large colony of Adelie penguins may be a sign that a changing climate means difficult conditions ahead for some of the world's ice creatures.
Floods in the Australian state of Queensland exacted a terrible toll last December and January. But one part of the Australian state welcomed the floods and is now thriving: The Outback. The World's Jason Margolis has more from Australia.
Antarctica has long been considered a last redoubt of cold in a warming globe. But new science suggests that a key part is warming up fast. Sam Eaton reports the finding could cause scientists to rethink their sea level projections for later this century.