Le gouverneur Arnold Schwarzenegger a félicité le Québec, un partenaire de la Western Climate Initiative, pour l'adoption d'un nouveau plan ambitieux de réduction des gaz à effet de serre de 20% par rapport aux émissions de 1990 d'ici 2020. D'ailleurs, il a profité de l'occasion pour rappeler l'importance des paliers inférieurs dans la lutte aux changements climatiques.
Selon lui, “No single issue threatens our planet’s health and prosperity more than climate change and Quebec is proving they are up to the challenge. Like California, Quebec is not waiting for national and international commitments; they are taking action now to reduce emissions and dependence on fossil fuels. This is another example of a subnational government leading the way and I look forward to more commitments and partnerships from all levels of government in the fight against global warming as we head into the 2009 climate conference in Copenhagen next month.”