In the Arctic, nearby soot may be a larger forcing than CO2


Still So good Attraction Plave

Watts Up With That?

From the AGU Weekly Highlights, something I’ve pointed out more than a few times. See this photo of a moulin in upper Greenland, where carbon soot has collected at the bottom:

Image from National Geographic online slide show – Photo: James Balog – click for more

The authors find that BC (black carbon) emitted within the Arctic has an almost five times larger Arctic surface temperature response (per unit of emitted mass) compared to emissions at midlatitudes.

The Arctic is especially sensitive to black carbon emissions from within the region

Black carbon, also known as soot, emitted from combustion of fuels and biomass burning, absorbs solar radiation in the atmosphere and is one of the major causes of global warming, after carbon dioxide emissions. When black carbon is deposited on snow and ice, the soot-covered snow or ice absorbs more sunlight, leading to surface warming. Due to the large amount…

View original post 470 more words

Advertisements

One thought on “In the Arctic, nearby soot may be a larger forcing than CO2

  1. Pingback: get high pr dofollow web 2.0

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