Microbes could help reduce the need for chemical fertilizers

Production of chemical fertilizers accounts for about 1.5% of the world's greenhouse gas emissions. MIT chemists hope to help reduce that carbon footprint by replacing some chemical fertilizer with a more sustainable source—bacteria.

The true costs of corn

A model examines farmers' profits and the health and environmental costs of growing corn in the US Midwest, where about 20% of the world's corn is grown. Corn farming involves applying fertilizer or manure to provide the ...

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