The bill says, "The scientific evidence is now compelling that recent climate change is caused at least in part by human activities, especially the burning of fossil fuels, which has driven atmospheric carbon dioxide concentrations to their highest levels in four hundred twenty thousand years." How Hawaii will do that is left up to a new commission, which will report to the legislature starting in 2010. Electrical generation, petroleum refining and statewide fuel supplies are all mentioned as places to look for savings. Airplanes are excluded from the legislation. I'd be flabbergasted if greener cars aren't a part of this solution, and I still think that EVs are a perfect fit for the islands.
Hawaii Governor Linda Lingle approved the legislation, HB 226, now Act 234, in June. We won't see results for five years or so, but at least they're getting started. It's not like global warming wouldn't affect Hawaii directly.
[Source: State of Hawaii via EERE ]