When Glacier National Park was dedicated in 1910, this stunning span of the Rocky Mountains on the Montana-Canadian border counted over 150 thick, morphing ice sheets that gave the park its name. One very warm century later, there are only 26 glaciers here. And by 2030, scientists warn, that number could be zero.
In the early days of climatology, a disturbing possibility reared its head whenever people ran computer models of Earth's climate — suddenly, everything would freeze over. It's called the White Earth climate, and this is why it hasn't happened.
If you are in the northeastern United States, it's likely that your weekend traffic makes it rain on Saturday and Sunday. In fact, most of us help control the weather in some way. Here's how you are making the sun shine, or bringing on a thunderstorm.
Very little water vapor ever rises above the troposphere (where the majority of Earth's weather occurs) but the little bit of vapor that makes it to the stratosphere is kind of a big deal. One recent study suggests that just a one to two percent increase in mid-stratospheric humidity can retain up to twice as much…
Sea ice levels shrink every summer, but this year has been different. Yesterday brought some big news: the extent of Arctic sea ice has officially reached a record low. What's more, it's done so weeks earlier than ever before — and it's not done shrinking yet.
Since 2004, glaciologist William Pfeffer has been photographing Alaska's Columbia Glacier. By monitoring where the glacier ends and the waters of Prince William Sound begin, Pfeffer is working to understand how coastal ice sheets contribute to rising ocean levels. Now, by piecing his photographs together, Pfeffer…
The last decade was the hottest on record, and yet it wasn't until 2010 that an individual year was hotter than the record-breaking 1998 heatwave. Somehow, global temperatures mysteriously flattened out. The explanation may lie thousands of feet underwater.
It's hard to imagine, but about 55 million years ago, Antarctica was ice-free and full of lush forests. Now analysis of ancient pollen has revealed when the last Antarctic vegetation died out...and what's next for the continents's vast ice sheets.
The Sun has been unusually quiet lately, with the solar wind the slowest it's been in 50 years and the sunspot cycle reduced to nothing more than the occasional belch. But don't believe reports that this spells doom for humanity.
Climate has been the secret driver of history, particularly in the preindustrial world. Empires and kingdoms rose to power when it was warm and wet and toppled when it became cool and dry...and climate might not be done guiding history.
Climate change could have devastating consequences for much of the world's ecosystems, but at least one area might benefit. Ancient rain forests thrived during severe warming millions of years ago, helping to create today's species diversity.
Currently, we're only able to predict the next year in hurricanes with any accuracy. But a new system that incorporates 35 years worth of hurricane data has found patterns that could predict hurricanes a decade in advance.
Evapotranspiration, the movement of water from the Earth's surface to the atmosphere, has been steadily decreasing in the southern hemisphere. What's causing this unprecedented moisture shortage, and how will it affect people down under?
Why are two groups of tiny sea creatures called bryozoans nearly identical, despite being separated by 1,500 miles of ice? They must have traveled across the continent long ago - on a massive Antarctic seaway.
We're unsure how humans might affect the climate long-term, but it's certain that nature alone can produce sudden, extreme climatic shifts. New findings suggest these abrupt changes might be completely unpredictable.