"... Then, in 2019, Mr. Prevo met a representative from Indigo, a Boston-based agricultural technology start-up that pays growers for carbon credits that result from implementing climate-friendly practices like the ones already in use on his 1,400-acre farm. The Prevos rely mostly on manure from the hogs they raise to fertilize their fields; last year, with guidance from Indigo, they stretched it further, enabling them to eliminate the use of synthetic fertilizer, one of the largest sources of greenhouse gas emissions in agriculture."
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