Tucked away in a remote desert town, a hidden vault safeguards Chile's most precious natural treasures. From long-forgotten flowers to endangered crops.
Climate change is causing hurricanes to get more powerful and dangerous. Scientists weigh in on what that means for forecasts, emergency officials and you.
The massive ice sheet on Greenland is shrinking as the climate gets hotter, pouring fresh water into the Atlantic Ocean. That could be setting off a chain reaction that's altering ocean ecosystems.
