EarthMethane mining could trigger killer gas cloud A rush to extract methane from the depths of Africa's Lake Kivu could trigger a huge upwelling of suffocating gas, potentially affecting over 2 million people 51¶¯Âþ
EarthAs Arctic Ocean warms, megatonnes of methane bubble up Research ship finds methane bubbling up from the Arctic seabed – probably released from ice that is melting because of the warming climate 51¶¯Âþ