Story perspectives

New Orleans Wetlands Emit 400M Tons of Methane Annually

2/22/2026

Summary

Story summary

Gage Hunter and Manab Dutta found wetlands near New Orleans produce 180–400 million metric tons of methane annually.
This production surpasses oil and gas emissions that release 120–133 million metric tons.
Methane is a potent greenhouse gas that accelerates microbial activity when released from waterlogged soils as the planet warms.
Researchers worldwide are refining wetlands methane estimates under varying conditions.
The findings underscore natural sources’ significant role in climate change.

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Story summary

Gage Hunter and Manab Dutta found wetlands near New Orleans produce 180–400 million metric tons of methane annually.
This production surpasses oil and gas emissions that release 120–133 million metric tons.
Methane is a potent greenhouse gas that accelerates microbial activity when released from waterlogged soils as the planet warms.
Researchers worldwide are refining wetlands methane estimates under varying conditions.
The findings underscore natural sources’ significant role in climate change.