Trees are shedding leaves later than usual

Scientists have found that the end of the Northern Hemisphere growing season has shifted to later in the year.

Amazing weather videos in November 2012

Check out these amazing videos that were uploaded in November - a tornado in Portugal, hail in Australia, a waterspout, and scenes from Hurricane Sandy.

Why sea level is rising faster than predicted

Climate feedbacks not included in global climate models may explain why sea level is rising faster than 2007 IPCC predictions.

October 2012 cool in U.S., but fifth-warmest October globally

No surprise. In fact, if you're 27 years old or younger, you've never experienced a single month where global temperatures ranked below the average for that month.

Antarctic ozone hole shrinks to second smallest in 20 years

Satellite data show that 2012’s Antarctic ozone hole was the second smallest recorded over the past 20 years.

Italy recovering from large floods

Series of storm systems produced large flooding in parts of north and central Italy. At least four causalities have occurred due to the heavy rains.

What is the world’s leggiest creature?

It's a millipede with up to 750 legs, twice as many as any other known millipede species. The video in this post shows all these legs moving together.

Ghost peppers: So hot it’s spooky

In 2007, the ghost pepper was determined to be the hottest naturally-occurring pepper on Earth.

October ends streak of above average temperatures for U.S.

Although October was below average in temperatures across the contiguous United States, the year 2012 still ranks as the warmest year ever recorded since 1895.

When Alaska’s Cleveland Volcano puffs out ash

Scientists keep an eye on this volcano, which can be hazardous to aircraft. When it releases ash, its "aviation code color" may be raised from yellow to orange.