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Farmers and scientists want to use the dirt beneath our feet to save the air above our heads

The headlining culprit in climate change warnings is the collection of greenhouse gases entering the atmosphere that come burning fossil fuels. You might be surprised, then, to learn that agriculture's effect on the health of the Earth's safety blanket is nearly as large as that of greenhouse gases. Clearing forests for farmland, tilling fields, raising livestock and spraying herbicides and pesticides—all of these practices contribute to the rising CO2 levels in the air. Now, new studies have started to point to compost as a tool for improving farming practices and reducing agriculture's effects on the environment.

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