The issue focused on climate change is probably one of the biggest environmental problems facing humanity today," NASA scientist Lisa Randall told Nature News. "One thing we're learning about climate change from NASA satellites is that climate changes across time."

NASA scientists study climate change because climate changes during Earth's evolution. Scientists predict climate change will cause warming and melting glaciers in Antarctica, Arctic sea ice melting and flooding around the world. Scientists expect climate change to raise sea levels by 20 feet or more by 2100.Having trouble viewing