Thetruestoryofhowascientistsavedtheplanetfromenvironmentaldisaster--nowinpaperback!MexicanAmericanMarioMolinawasamodern-dayherowhohelpedsolvetheozonecrisisofthe1980s.GrowingupinMexicoCity,Mariowasacuriousboywhostudiedhiddenworldsthroughamicroscope.AsayoungmaninCalifornia,hediscoveredthatCFCs,usedinmillionsofrefrigeratorsandspraycans,weretearingaholeinEarth’sprotectiveozonelayer.Marioknewtheworldhadtobewarned--andquickly.MariowentontobecomeaNobellaureateandarecipientofthePresidentialMedalofFreedom.Hisinspiringstorygiveshopeinfightingtheongoingclimatecrisis.
