Click here for the report from a multinational scientific committee of several thousand scientists, available online in a 146 page pdf file. I have read about half of this so far, and I must recommend it to everyone. If you know of someone who doesn't believe in global warming, I feel it is your responsiblity to slap them across the face with this report. The threats of extinction of most arctic species and severe economic consequences are very real and we only have about 10 years left to deal with them before the "tipping point" is reached. Do yourself and your children a favor and read this report.
Also check out Bill McKibben's reporting on Gristmill.org from the climate change conference at Middlebury College in Vermont. Good Stuff.