Smoke pollution from wildfires threatens the advancements the U.S. has made in cleaning its air.
There were some unusual highs and lows to snowfall totals across the U.S. this winter. Take a look at the long-term trends in total snow for more than 1,100 sites.
A new Climate Central analysis found an increase in the percentage of winter precipitation falling as rain in many western states.
The big picture is clear: Overall, fall is warming across the U.S, 0.46F per decade since 1970.
While every region of the country has seen a rise in winter temperatures since 1970, precipitation trends paint a more varied picture.
Since 1970, winters in the continental U.S. have warmed by 0.61°F per decade on average.