How to avoid severe climate change discussed at CO2 conference

The kind of devastation seen on the Gulf Coast from Hurricane Katrina may be a small taste of what is to come if emissions of the greenhouse gas carbon dioxide (CO₂) are not diminished soon, warns Dr. Ken Caldeira of the Carnegie Institution’s Department of Global Ecology in his opening remarks at the 7th International Carbon Dioxide Conference in Boulder, Colorado, September 26, 2005.