Aerosols along the Himalaya
October 29, 2020

Yes, human activities exert a cooling influence on Earth in several ways. Overall, this cooling influence is smaller than the warming influence of the heat-trapping gases humans put into the air.

Intermountain Power Plant
October 29, 2020

Yes, human activity is putting carbon dioxide into the atmosphere faster than natural processes take it out. Rising carbon dioxide levels are strengthening Earth's greenhouse effect and causing global warming. 

Okpilak Glacier
October 29, 2020

Our global historical temperature records undergo rigorous quality control and independent peer review. Plus, the proof Earth is warming is practically everywhere you look. 

October 29, 2020

Differences in exposure to sunlight, cloud cover, atmospheric circulation patterns, and other factors influence whether and how much a location is warming or cooling.

Women standing in front of a car that has a temperature sensor clipped to the passenger window
July 24, 2019

With specially designed sensors mounted on their own cars, volunteers in each city will drive pre-planned routes, recording heat and humidity as they go. Scientists will stitch their results into a detailed map showing the hottest parts of each city. 

March 6, 2012

 

It is virtually certain our world will continue to warm over this century and beyond. The exact amount of warming that will occur in the coming century depends largely on the energy choices that we make now and in the next few decades.
March 25, 2010

We can have record-setting blizzards and global warming at the same time. NOAA scientists explain climate variability, how it influenced our weather this winter, and how it differs from climate change.

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