Mario and the Hole in the Sky: How a Chemist Saved Our Planet

The true story of how a scientist saved the planet from environmental disaster--now in paperback!

Mexican American Mario Molina was a modern-day hero who helped solve the ozone crisis of the 1980s. Growing up in Mexico City, Mario was a curious boy who studied hidden worlds through a microscope. As a young man in California, he discovered that CFCs, used in millions of refrigerators and spray cans, were tearing a hole in Earth's protective ozone layer. Mario knew the world had to be warned--...