Halloween weather can be highly variable depending on the year.
One of the oldest oak trees in the U.S. was dealt a death blow by extreme heat this summer.
The record run of planetary heat has rewritten the record books.
Yet another month of planetary heat has basically ensured 2016 will be the hottest year on record.
Later frosts mean longer growing seasons for the U.S.
Here's where in the U.S. the frost free season is growing the fastest.
This is how much the average frost-free season has changed since 1970.
A key threshold for the Paris climate pact has been surpassed, meaning it's nearly ready to take effect.
The decrease in cool nights is one feature of an overall fall warming trend.
Climate change is altering important elements affecting fall foliage.
New findings indicate the planet could be in for nearly double the global warming as previously thought.
Researchers startled to discover Caspian terns 1,000 miles north than species had been previously recorded.
It's all about Greenland's ice melt and August's record heat this week on The Shum Show.
Climate change poses a national security risk, but the Obama administration has a plan to deal with it.
Here's why we always talk about global temperature anomalies as opposed to actual global temperatures.
Watch 2016’s Arctic sea ice melt away in seconds.
The annual Arctic sea ice minimum extent has been below average every year since 2002.
Climate change has delayed the date of the annual Arctic sea ice minimum.
A new report warns that global warming is changing the behavior of marine species and spreading disease.
August was record hot for eight Northeastern states, amid the third warmest year for the contiguous U.S.