Global warming is real, is happening now, and is largely caused by human activities. To prevent the worst impacts of global warming, the United States must take action to reduce global warming pollution quickly and dramatically. Electricity generation accounts for more than a third of America’s emissions of global warming pollution. Preventing catastrophic global warming, therefore, will require the United States to shift away from highly polluting sources of power, such as coal-fired power plants, and toward clean, renewable energy. Concentrating solar power (CSP) technologies – which use the sun’s heat to generate electricity – can make a large contribution toward reducing global warming pollution in the United States, and do so quickly and at a reasonable cost. CSP can also reduce other environmental impacts of electric power production, while sparking economic development and creating jobs.