As the climate warms, maples are being tapped earlier in the year to get the sap that produces syrup.
Each of the National Parks faces unique challenges from climate change, including increased heat.
Overall, Great Lakes ice cover is on the decline.
Maximum ice cover on the Great Lakes is way down this year and on a long term downward trend.
An early spring can disrupt plant & animal behaviors and make it more difficult on farming.
On the current greenhouse emissions path, spring may start an average of three weeks earlier by 2100.
Take a look at how cold nights have been trending for various cities across the U.S.
As the U.S. and globe have warmed, lake-effect snowfall amounts have been on the rise.