A federal judge on Monday tossed out a lawsuit filed by California that sought to hold the world’s six largest automakers accountable for their contribution to global warming. District Judge Martin Jenkins in San Francisco handed California Attorney General Jerry Brown’s environmental crusade a stinging rebuke when he ruled that it was impossible to determine to what extent automakers are responsible for global-warming damages in California. The judge also ruled that keeping the lawsuit alive would threaten the country’s foreign policy position.
I would also add that it is impossible to determine how much CO2 has affected warming, or what weather effects might be the result of such warming or just from normal variation. Further, while areas like the Arctic are clearly warming, it is not at all clear that the US has experienced much warming in the last century.