Nuclear meltdowns don't happen often, but when they do, their effects can circle the globe. In the United States, nuclear power plants generate 20 percent of the country's electricity. Learn all about the world's most devastating nuclear disasters, the nuts and bolts of how nuclear power works, and the ways in which workers constantly try to improve the systems and protect the public to avoid these meltdowns. This title will allow students to understand that new technologies can have deep impacts on society and the environment.