Let’s take a closer look at carbon dioxide, currently Public Enemy Number One! It’s one of several prominent greenhouse gases. They are; nitrous oxide, methane, ozone, chlorofluorocarbons and water vapor. All have been labeled with GWP ratings (global warming potential). Strengths vary, but at sea level CO2 has a rating of 1, Methane is rated 25 times stronger, water vapor is 45 times stronger, nitrous oxide 300 times stronger, ozone is 1,000 times stronger and chlorofluorocarbons are generally 10,000 times stronger. Good thing CO2 is the most abundant, isn’t it?