Laughing Gas May Have Helped Warm Early Earth and Given Breath to Life

Monday, August 20, 2018 - 13:40 in Earth & Climate

Laughing gas and the mystery of Carl Sagan's Faint Young Sun Paradox: When the sun shone dimmer an eon ago, Earth remained warm in spite of it likely thanks to a mix of greenhouse gases. Biogeochemists show how N20, known today for its use as a dental anesthetic, may have made it into the mix.

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