Climate change has increased pollen counts and the length of the pollen season, trends that are expected to continue through mid-century.
If global warming continues unabated, only 6 of the 19 previous host cities could host the Winter Games again by the 2080s.
As the globe continues to warm, it is already having an effect on the jet stream and corresponding weather patterns.
Foliage color and timing has been starting later, on average, in a warming world.
Compared with the median ice cover from 1981-2010, 2013's Arctic sea ice loss comes out to approximately 1.74 times the land area of Texas.
Scientists say increased CO2 emissions are making poison ivy worse.
The highlights of NOAA's 2013 Spring climate summary.
The number of big fires has shot up since 1970, with the largest number occurring during the years with the highest temperatures.