Every summer, Greenland's ice sheet melts when temperatures warm up. This year, however, saw the start of the ice melt season begin in April, much earlier than normal.
Guest blogger Amy Butler explains how changes in the stratospheric polar vortex can influence the "usual" effects of El Niño on the climate in the Northern Hemisphere.
From protecting our waterways to reducing overfishing, we've made a lot of progress since the first Earth Day. Take a look at five big wins in the 46 years since 1970.
In this week's Beyond the Data blog, Deke Arndt explains the climate behind this spring's prairie fires.
Drought has gripped many islands across the Pacific thanks to El Niño and a lack of rainfall.