California this week sued EPA for failing to grant it a waiver, under the Clean Air Act, that would allow the state to impose its own greenhouse gas emissions rules on new cars. If California succeeds in imposing its own super-stringent emission rules on cars, it will have no measurable effect whatsoever on future temperatures, whether measured globally or statewide. It will, however, have a disastrous impact on California consumers, and perhaps on the rest of the American public. California also recently sued the auto industry, demanding monetary damages for the fact that its cars emit carbon dioxide. The state lost that case. Hopefully, it will lose this one as well.