Quote Originally Posted by Plan B
That's funny.
Way before this global warming thing became an issue I learnt from a visiting American lecturer that volcanoes were emitting much larger amounts of CO2 than humans did.
Then during the MMGW years that estimate was revised drastically. Now someone's saying it was right all along.
If you're genuinly interested in understanding the topic you might try first taking a look at the consensus of scientific opinion on the topic instead of one visiting scientist whose opinions are later revised. Conspiracy whackos should consider: it is much easier to make a conspiracy of the few (climate deniers who work for the oil industry as some of them do) and 97% of the global scientific community.