Resources and Tools | NOAA Climate.gov

Educational Resources: Search the CLEAN Collection

Find and download scientifically and pedagogically reviewed digital resources for teaching about climate's influence on you and society and your influence on climate.

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(-) Remove 6 c Human activities have increased GHG levels and altered global climate patterns filter 6 c Human activities have increased GHG levels and altered global climate patterns

Time History of Atmospheric CO2

This animated visualization represents a time history of atmospheric carbon dioxide in parts per million (ppm) from 1979 to 2016, and then back in time to 800,000 years before the present.