New global warming threat as scientists discover massive methane 'time bomb' under the Arctic seabed

Global warming could rapidly accelerate as millions of tons of methane escape from beneath the Arctic seabed, scientists warned today.

Huge deposits of the greenhouse gas - 20 times more potent than carbon dioxide - are rising to the surface as the Arctic region heats up, according to preliminary findings.

Researchers found massive stores of sub-sea methane in several areas across thousands of square miles of the Siberian continental shelf and observed the gas bubbling up from the sea floor through 'chimneys', according to newspaper reports.

read full story - http://www.dailymail.co.uk/sciencetech/article-1060041/New-global-warming-threat-scientists-discover-massive-methane-time-bomb-Arctic-seabed.html