EarthSoaring Arctic temperatures – a warning from history With carbon dioxide levels near our own, the Pliocene Arctic may have warmed much more than we thought – and today's Arctic could go the same way 51¶¯Âþ
EarthSecond well on the way to cap Deepwater Horizon Capping the flow of oil from the stricken rig by drilling another well is a huge technical challenge, but it has to work 51¶¯Âþ