If it seems like autumn leaves are taking longer to change color, youÃ¢Â€Â™re not imagining things. Over the past 25 years, the onset of autumn has shifted.
Online searches for the word Ã¢Â€ÂœpollenÃ¢Â€Â have gone through the roof this spring, and if you know anyone with seasonal allergies (and who doesn't?) this isnÃ¢Â€Â™t surprising.
The Lower 48 as a whole had an average shift of Ã¢Â€Âœfirst leafÃ¢Â€Â from March 20 (1951-1980 average) to March 17 now (1981-2010 average) Ã¢Â€Â“ approximately 3 days earlier.
A visual look at six plant species that are already being affected by climate change.
In 2006, wildfires burned seven million acres in the West, the equivalent area of five of the country's largest national parks.
In a desert state like Nevada, heavy rains promote plant growth but can lead to more wildfires.
In a forested state like Montana, hotter and drier years leave forests more susceptible to large wildfires.
Volatile precipitation patterns, with heavy rains followed by drought, can lead to ideal conditions for wildfires in some states.