Back in July (7.13.07) I remember watching the PBS NOW show titled

"Emission Impossible?"
This week NOW investigates not only California's aggressive stance against global warming, but also strong political opposition standing in the way of its expansion. Are California and the Environmental Protection Agency headed for a showdown?

Bush Slams California on Climate Change
Ann Carlson - HuffPo
Posted December 20, 2007
05:58 PM (EST)
Three days ago I suggested - naively - that perhaps the Bush Administration would turn in the right direction on climate change and grant California a waiver to regulate greenhouse gas emissions from automobiles. It hasn't and the EPA didn't...

EPA says no to California's emissions plan
By Juliet Eilperin