At the core of the latest attempted “renaissance” of nuclear power is the Big Lie that atomic reactors are an answer to global warming. In fact, they’re significant sources of heat. The more than 400 nuclear plants in the world fission atoms at 300 degrees Centigrade (572 degrees Fahrenheit). Meanwhile, the nuclear industry is pushing fusion reactors to run at 150 million degrees Celsius, 270 million degrees Fahrenheit.