Two thousand miles lay ahead for the nearly 40 marchers who departed from Los Angeles in February and will arrive in Washington, DC, in November. Their feet tell the story of walking a thousand miles for climate justice. Their eyes look across the United States. The Great March for Climate Action threads through small towns, big cities and wide-open wilderness. In each area, local residents join the marchers, who also visit schools, churches and community organizations, raising awareness about the causes, effects and impacts of climate change on our society. If left unaddressed, climate change could reach catastrophic levels, heralding the collapse of modern civilization and ultimately, the extinction of the human species.