As a bonus track to the main greenhouse effect episode "Throwing stones in green houses", hear from atmospheric chemist Dr Stephane Bauguitte about carbon dioxide and methane measurements in Antarctic firn snow, emissions from Arctic lakes and Canadian forest fires.
This time we take on the green house effect, including harassing members of the Manchester public!
Find out how we managed to stear the topic to the French Revolution - a bit of a recurring theme on the Barometer. Also, why are we so worried about CO2 when other green house gases are "better", what makes a good greenhouse gas, how do we measure them, and much, much more.
Here's some vocoded CO2 fact. He very nicely provides a physical demonstration of what we were trying to say about molecules having lots of different ways to vibrate, whilst also providing an homage to early 90's street culture.