It would seem we have been naughty over the last few years.....Bad, Bad humans.
"Recent CO2 rises exceed worst-case scenarios
* 22:00 21 May 2007
* NewScientist.com news service
* Catherine Brahic
The world's recent carbon dioxide emissions are growing more rapidly than even the worst-case climate scenario used by the Intergovernmental Panel on Climate Change, say researchers.
The team, led by Michael Raupach of the Australian Commonwealth Scientific and Industrial Research Organisation, looked at the growth of CO2 emissions and found that emissions growth suddenly accelerated in 2000. During the 1990s, emissions grew by 1.1% per year on average, but the number shot up to 3.3% between 2000 and 2004, when the study ended.
When they compared the recent emissions trend to those the UN-backed IPCC drew up as its "worst case scenario", the team found the reality was at least as bad, if not worse (see graph, right).
The team then examined the changes between 1980 and 2004 in factors such as population, economic growth, energy efficiency and carbon efficiency (the amount used per unit of GDP). From this, they were able to determine why CO2 emissions accelerated after 2000."
http://environment.newscientist.com/...scenarios.html