New Hampshire legislation · 2026 Regular Session
New Hampshire HB1618: prohibiting solar radiation modification, weather modification, and other polluting atmospheric interventions.
Status: Failed, February 5, 2026
What the bill says
An act prohibiting solar radiation modification, weather modification, and other polluting atmospheric interventions. Rep. Mattson, Ches. 18; Rep. Drew, Hills. 19; Rep. Granger, Straf. 2; Rep. DeVito, Rock. 8; Rep. DeRoy, Straf. 3; Rep. McGrath, Rock. 40; Rep. Reinfurt, Hills. 29; Rep. Mehegan, Merr. 12 COMMITTEE: Science, Technology and Energy ----------------------------------------------------------------- ANALYSIS This bill establishes a regulatory process to prohibit solar radiation modification (SRM), geoengineering, or other atmospheric interventions involving the release of pollutants.
From the introduced text, January 7, 2026:
AN ACT prohibiting solar radiation modification, weather modification, and other polluting atmospheric interventions. Rep. Mattson, Ches. 18; Rep. Drew, Hills. 19; Rep. Granger, Straf. 2; Rep. DeVito, Rock. 8; Rep. DeRoy, Straf. 3; Rep. McGrath, Rock. 40; Rep. Reinfurt, Hills. 29; Rep. Mehegan, Merr. 12 COMMITTEE: Science, Technology and Energy ----------------------------------------------------------------- ANALYSIS This bill establishes a regulatory process to prohibit solar radiation modification (SRM), geoengineering, or other atmospheric interventions involving the release of pollutants within the state, providing penalties for violations. This bill requires reports of such violations to be made to the New Hampshire county sheriffs or deputized New Hampshire citizens to enforce the provisions. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Explanation: Matter added to current law appears in bold italics. Matter removed from current law appears [in brackets and struckthrough.] Matter which is either (a) all new or (b) repealed and reenacted appears in regular type. 26-2644 08/06 STATE …
Sponsors
- Melissa Litchfield (R, 32) · primary sponsor