Research
The most complete and up-to-date site for climate research and explanations is realclimate.org
Find out about financial incentives for alternative energy / CO2 reduction in your state at DSIRE
What you can do!
Calculate your "carbon footprint" at:
For ideas to increase energy efficiency in your home: Home Energy Magazine Online.
Organizations
The United Nations' Intergovernmental Panel on Climate Change (IPCC) provides copies of their reports for download at ipcc.ch
The Pew Center on Global Climate Change has been producing reports on the topic since 1998. pewclimate.org
The Union of Concerned Scientists has a program area on climate change. ucsusa.org
Advocacy
Climate change experts are running out of arguments to support their denial. Dr. Stephen Nodvin has developed a website to address their remaining arguments. denial.nodvin.net