Sea ice extent sinks to record lows at both poles

Upper part of Earths magnetic field reveals details of a dramatic past

Dead zones may threaten coral reefs worldwide

Last remnant of North American ice sheet on track to vanish

From entanglement to invasions of alien species: the harm caused by marine litter

Extensive ice cap once covered sub-Antarctic island of South Georgia

The carbon dioxide loop

How to conserve polar bears -- and maintain subsistence harvest -- under climate change

China's severe winter haze tied to effects of global climate change

Marine recovery after mass extinction was likely delayed by further biotic crises