A coal-fired power plant releases a lot of “waste heat” [photo by eutrophication&hypoxia, CC BY 2.0 Deed]
![A coal-fired power plant releases a lot of "waste heat" [photo by eutrophication&hypoxia, CC BY 2.0 Deed]](https://www.energyvanguard.com/wp-content/uploads/2013/08/home-energy-efficiency-conservation-coal-fired-power-plant-pollution-waste-blog.jpg)
