Mario and the Hole in the SkyBy: Elizabeth Rusch Illustrator: Teresa Martnez The true story of how a scientist saved the planet from environmental disaster. Mexican American Mario Molina is 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