“Methane Time Bomb in Arctic Seas – Apocalypse Not”

[B]ased on what we see in the atmosphere, there is no evidence of substantial increases in methane emissions from the Arctic in the past 20 years.

“Methane Time Bomb in Arctic Seas – Apocalypse Not”

Our headline is taken from New York Times blogger Andy Revkin’s recent DotEarth post covering the results of a new paper which investigates the relationship between higher temperatures in recent decades and methane release from the Arctic seabed off the Siberian coast. As you can probably tell from the headline, the research team, led by Igor Dmitrenko, did not find that global warming, current and future, was going to have much of a dramatic impact on the release of methane from the Arctic seas. This is a fairly significant finding because methane—which has about 20 times the impact on the greenhouse effect that carbon dioxide does on a molecule by molecule basis—has the potential to act as a large amplifier (positive feedback) to a warming climate. Consequently the specter of a large Arctic methane release plays a prominent role in many of the more alarming future climate change storylines. (WCR)

About these ads

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s