Climate

Scientists seek holy grail of climate change in Oman's hills
Geologists are coring samples from one of the world's only exposed sections of the Earth's mantle to uncover how a spontaneous natural process millions of years ago transformed CO2 into limestone and marble.
Bald eagles soar back into town ahead of schedule, thanks to the weather
The spring eagle migration usually coincides with the ice-out of Minnesota's lakes and rivers. But mild weather in February meant the ice broke up earlier than usual and also melted much of the snow dotting the ground.