Carbon dioxide in the atmosphere is the major driver of climate change. Most people have heard of rising sea levels and ocean acidification, and have likely experienced changes to their local weather. Teenagers are more likely than adults to agree with the scientific testimony that climate change is being driven by human activity, however, people of all ages are unclear on the underlying causes of global warming. Surveys and polls show that young people are concerned about their future environment and society, and they want to take actions that will limit climate change and the damage it is causing. For young people to know the appropriate actions that will reduce or eliminate the climate change related problems, they need to first understand the issues and the science.