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| Title: |
CARBON DIOXIDE IN THE ATMOSPHERE |
| Caption: |
(a) Average concentration of atmospheric carbon dioxide from 1500 to 2000, based on measurements of air bubbles trapped in glacial ice and on direct measurements from the NOAA Mauna Loa Observatory in Hawai'i. (Data in part from Post, W.M., et al. 1990. American Scientist 78[4]:210-26). |
| Keywords: |
atmosphere, climates, climatology, global warming, greenhouse effect, gases, carbon dioxide |
