Greenhouse gas mitigation requires caution
Stein, Lisa Y. ; Lidstrom, Mary E.
Methane (CH4) and nitrous oxide (N2O) are greenhouse gases that rank second and third behind carbon dioxide (CO2) as primary contributors to global warming and climate change. Outside of fossil sources, these gases are emitted by microorganisms as they interact with their environment. Many strategies have targeted reduction of methane emissions. Although such efforts are well meaning, the microbial communities that live in these settings can respond to mitigation efforts by producing more N2O, which reduces or even negates the positive climate impact (1, 2). Mitigation approaches too often have not accounted for these trade-offs, and doing so requires additional monitoring to make sure any specific strategy achieves a net climate benefit.</p>
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