The unsettling discovery that chemical gasses (CFCs) possibly damaged the ozone layer turned the world upside down in the 1980s. Without the ozone layer, our planet would have no protection against the sun. Scientists and politicians convinced two of the most unlikely eco-warriors in history, Ronald Reagan and Margaret Thatcher, to take action. This resulted in a historic treaty: for the very first time, the world decided to ban environmentally harmful...

Una historia real sobre un cient?fico contempor?neo que salv? la capa de ozono y el planeta, evitando un desastre en el medioambiente. Mario Molina es un cient?fico mexicoamericano y un h?roe de nuestros d?as que ayud? a resolver la crisis de la capa de ozono de la d?cada de 1980. Se cri? en la Ciudad de M?xico y desde ni?o sinti? curiosidad por los mundos ocultos que estudiaba a trav?s de un microscopio. De joven, ya viviendo en California, descubri?...