Before we started burning fossil fuels, the carbon content of the air generally remained steady, but that carbon was still mobile. It was introduced into the atmosphere by natural processes, and absorbed into the land b - Fossil fuels - Document - PDFSEARCH.IO

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	Before we started burning fossil fuels, the carbon content of the air generally remained steady, but that carbon was still mobile. It was introduced into the atmosphere by natural processes, and absorbed into the land b Add to Reading List Document Date: 2016-02-02 11:58:45 Open Document File Size: 2,62 MB Share Result on Facebook

Before we started burning fossil fuels, the carbon content of the air generally remained steady, but that carbon was still mobile. It was introduced into the atmosphere by natural processes, and absorbed into the land bAdd to Reading List