<human>:  I have a question about the book China's Solar Revolution. Why did the Chinese government decide to invest so much in solar power?
<bot>: The Chinese government decided to invest in solar power because they wanted to reduce their dependence on coal. Coal is a dirty fuel that produces a lot of greenhouse gases. Solar power is a clean energy source that produces no greenhouse gases. The Chinese government also wanted to reduce their dependence on foreign oil. Solar power is a renewable energy source that does not require any foreign oil.