16/04/2026
What’s bubbling beneath reservoirs matters.
Rios to Rivers involved in getting a major petition on the desks of California lawmakers that could greatly help the protection of the climate and rivers.
New research shows that dams and hydropower reservoirs can emit significant greenhouse gases, yet California does not currently require these emissions to be reported. As the state works toward cutting methane emissions 40% by 2030, environmental groups including Rios to Rivers, warn that this uncounted source could undermine real climate progress.
Methane, a potent climate‑warming gas, is released as submerged plants break down underwater. Scientists say this overlooked source contributes 3%-7% of all the methane from human activities..
Now, environmental groups are urging California to begin tracking reservoir emissions and to rethink how we define “clean” energy. Climate solutions require seeing the whole picture.