COSEE Ocean Systems: News
Carbon dioxide levels race past troubling milestone
Description: Every year, the amount of carbon dioxide (CO2) rises during winter and then falls slightly during the Northern Hemisphere's growing season, as plants take up the greenhouse gas during photosynthesis. But this year, for the first time since before the Ice Age, CO2 will not fall below 400 ppm. [Source: NOAA News]
URL: http://www.noaa.gov/stories/carbon-dioxide-levels-race-past-troubling-milestone
Availability: Full Text
Source: NOAA News
Publish Date: 9/30/2016
Reading Level: Basic
Page Length:  

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