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In response to growing concern about climate change and its potential effects, a “green” economic sector is growing rapidly in California to provide consumers with products and services ranging from solar panels to plug-in hybrid cars to environmentally certified building materials. The State of California has a strong history of policies to promote energy efficiency and renewables, and is about to implement the strongest anti-global warming legislation in the country, the Global Warming Solutions Act (AB 32, 2007). At the local level, cities and counties are developing initiatives to reduce their greenhouse gas emissions and attract new business in emerging technologies, such as the East Bay Green Initiative recently proposed by the mayors of Oakland, Emeryville, Berkeley and Richmond.