California Gov. Gray Davis brags about signing a law to force cars to emit less carbon dioxide. He says:

The federal government and Congress, by failing to ratify the Kyoto treaty on global warming, have missed their opportunity to do the right thing. So it is left to California, the nation's most populous state and the world's fifth largest economy, to take the lead. We can now join the long-standing and successful effort of European nations against global warming, learn from their experience and build upon it. [See also Wash Post story.]

Davis has been a disaster. Now he wants California to have its own foreign policy, contrary to the federal govt. Europe has not been successful at fighting global warming. In other actions, Davis has bragged about making California more dependent on natural gas for energy, which creates a lot of carbon dioxide.

Carbon dioxide is good for the environment, not bad. It is harmless to humans and animals, and it helps plants grow better. The only potential downside is that it contributes to global warming. Whether that is good or bad is debateable. Whether anything can be done about it is debateable. But if Davis really wants to do something about carbon dioxide, then he should license nuclear power plants.