Jim Callahan has been building opportunities for active young people to engage with global warming issues since 1999. He founded ClimateChangeEducation.Org to serve kids and teachers, and tens of thousands have participated in its hands-on science demonstrations in schools, trainings, large events and conferences, made available in partnership with the California Academy of Sciences, The Exploratorium and the Bay Area's science museums. Their volunteer portal websites, including GlobalWarmingKids.Net, draw millions from all over the planet.