"An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey ...

As Earth approaches warmer levels experienced earlier in its geologic history, it may be bad news for human survival.

A naturally occurring ice sculpture formed to mirror the Chicago skyline along the shore of Lake Michigan, stunning footage ...

Arctic daily sea ice extent continued to hover near record daily lows in January, with the ice edge well northward of its long-term average position in most areas. In contrast to the cold conditions ...