Sharp rise in CO2 levels recorded

I was doing some exam practice last night, and one of the questions was something along the lines of 'how does an increase of CO2 in the atmosphere effect the environment'. Spookily enough, the following article was published on the BBC Website today.

US climate scientists have recorded a significant rise in the concentration of carbon dioxide in the atmosphere, pushing it to a new record level.
BBC News has learned the latest data shows CO2 levels now stand at 381 parts per million (ppm) - 100ppm above the pre-industrial average
The precise level of carbon dioxide in the atmosphere is of global concern because climate scientists fear certain thresholds may be "tipping points" that trigger sudden changes

they also quote Professor Sir David King, UK chief scientific adviser as saying: -

Mankind is changing the climate

There is also a hotlink to their Guide to Climate Change website, which gives an answer to the question in exhaustive detail, with bells, whistles, and superb graphics. I'd get an A* for producing that one!

I've also just noticed a link on this page to In depth - Climate Change, again from the BBC, which goes into even more detail. This is a great resource, and definitely one to bookmark.