Posted by Graham Thompson -
19 April 2013 at 6:21pm -
Ancient ice cores, drilled from the thickest glaciers in the
Arctic, allow you to examine the atmosphere from thousands of years ago when
the ice was last water, by analysing the gases contained in the bubbles trapped
in the ice. It’s the carbon content scientists are particularly
interested in – they’re looking for carbon bubbles, and they’re willing
to go to the ends of the earth, quite literally, to find them.
But there’s another type of carbon bubble which is even more
important in the climate debate, and so far we’ve been doing our utmost to
ignore it. This week that began get more difficult.