Few today would still deny that the Earth is getting gradually and unmistakably warmer. Arctic ice is melting, sea levels are rising, and glaciers are shrinking at alarming rates. But is this vast, potentially catastrophic, climate change the result of human behavior? Or rather part of the Earth's natural cycle, played out over millennia? Or some combination of the two? The History Channel takes an in-depth look at the science behind the hot-button issue of climate change. Shot on location at weather labs and science explorations around the globe, this DVD provides a fascinating look at the story of the Earth's evolution and glimpse at the future of our planet. The DVD is packaged in 100% recycled material.