why do you think its because of us? its been proven that volcanoes produce much more greenhouse gases than we do, scientists, contrary to popular myth,don't actually know a whole lot about our role in climate change. Besides all that, look back in the last couple hundred years; warmer than usual temperatures in the 1500s helped spread the black plague. In the 1300s, ice was seen in the Nile River. I think its obvious that the earth goes through climate change naturally and this whole global warming thing is really blown up.

Global warming is a silly idea, all one has to do is see the temperature trend in the past few hundred years to see the earth simply goes through climate cycles.

Volcanoes put a lot more carbon dioxide and poisonous gas into the atmosphere then we do, and we seem to be doing fine, soo...