Study: State-level adoption of renewable energy standards...
In the absence of federal adoption of climate change policy, states and municipalities in the United States have been taking action on their own. In particular, 29 states and the District of Columbia have enacted renewable portfolio standards (RPSs) requiring that a certain fraction of their electricity mix come from renewable power technologies, such as wind or solar. But now some states are rethinking their RPSs. A few are making them more stringent, but many more are relaxing or...