U.S. Is Backing Anaerobic Digesters. Scientists and Advocates Say Stronger Guardrails Are Needed.

There are no federal methane standards for manure digesters, leaving operators to rely on voluntary guidance.

By: Gaea Cabico

Outlets: Sentient

Published: July 21, 2026

Words: 1,252

Last Updated: 1 week ago

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In the United States, a technology called anaerobic digesters has become a key part of the livestock industry’s efforts to curb planet-warming emissions, in part by capturing methane from manure and processing it into renewable natural gas. This fuel can generate electricity and power vehicles. But critics argue these digesters are being built across the country — mostly on factory farms — even though the U.S. lacks a comprehensive system to monitor and verify …

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