A CARICATURE is easy, especially one that depicts the US as an irresponsible bad boy of climate-change politics. But while it might be applied to the federal administration, which has pulled out of the Kyoto protocol on climate change, many state governments are following their own line.
California is pushing ahead with tough new laws to cut vehicle carbon dioxide emissions by almost a third over the next 12 years. New England states have joined neighbouring provinces in Canada in a pact to return their CO2 emissions to 1990 levels by 2010 and then to cut them by…
