Establishes the vital importance of the greenhouse effect for life on Earth. Presents a balanced argument to assess whether anthropogenic climate change-often called "global warming"-is in fact taking place. Offers clear arguments on both sides of the debate and illustrates both more economically developed countries and less economically developed countries. Provides a thorough and balanced examination of this important and often contentious issue. Accessibility options on the DVD are: (1) expanded description, (2) English subtitles in a black box.