Global warming puzzle becomes even MORE complex - as methane is detected seeping directly from the Arctic ocean

Global warming puzzle becomes even MORE complex - as methane is detected seeping directly from the Arctic ocean | Mail Online: "Airborne surveys of the Arctic appear to have found a puzzling new source of greenhouse gas - methane seeping directly from the Arctic ocean

A report in Nature Geoscience suggests that as well as huge 'surges' of methane being released by melting permafrost, the gas might be being released from the ocean itself.

Methane is a potent greenhouse gas - and this unpredictable effect makes the climate puzzle even more complex."