Chlorofluorocarbons or CFCs are a chemical compound containing carbon, chlorine, and fluorine. Throughout the 20th century, CFCs were mass produced for their popularity in refrigeration and spray cans. In the 1970s, evidence began to show the harmful effects of CFCs on Earth.
Originally created as Great Sand Dunes National Monument on March 17, 1932, Great Sand Dunes National Park and Preserve was established by an act of the United States Congress on September 13, 2004.
(AP/CBS4) â The Colorado State Patrol says a trooper has found a 6-year-old boy reported missing in Great Sand Dunes National Park & Preserve in southern Colorado. CBS4 partner KKTV in Colorado Springs reports the boy was walking toward a road near the park entrance Monday when he was found. Caleb Lund (credit: KKTV).