COSEE Ocean Systems: News
When's the Last Time Our CO2 Levels Were This High?
Description: Thanks largely to our burning of fossil fuels, the average carbon dioxide concentration of the Earth's atmosphere surged past 400 parts per million in March. It has been a long time since the planet experienced such CO2 levels. How long? It depends on who you ask. [Source: Pacific Standard]
Availability: Full Text
Source: Pacific Standard
Publish Date: 5/19/2015
Reading Level: Basic
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