Creates the "Clear Skies Act" prohibiting geoengineering, cloud seeding and other atmospheric interventions, authorizing DNR to investigate violations, and includes penalty provisions
HB 2656, the "Clear Skies Act," prohibits any entity in Missouri from conducting geoengineering, weather modification (like cloud seeding), or atmospheric interventions that release pollutants. It directly affects individuals, corporations, government agencies, universities, and other organizations conducting such activities within the state. The bill authorizes Missouri’s Department of Natural Resources (DNR) to investigate violations via an online reporting system, issue enforceable cease-and-desist orders, and impose felony penalties of up to $100,000 or two years in prison per violation (with separate penalties for each day of noncompliance). The law explicitly excludes pesticide use in farming and ranching operations. The bill is currently in early legislative stages with no votes recorded.
Bill status
in committee
1 of 4 stages cleared
Introduction
Jan 2026
Committee Review
Floor Vote
Governor
Introduced Jan 5, 2026
Last action May 12, 2026
Maddy AI version diff · 1 comparison
What changed between versions
Introduced
→
House Committee Substitute
·
5 edits
MODERATE
The bill was expanded to include HB 2388, changing the title from 'Clean Skies Act' to 'Clean Skies Act & HB 2388'. The most significant change is the replacement of a broad ban on geoengineering with a specific prohibition only on contrails produced by aircraft. The definition of 'Entity' was removed and replaced with 'Person', while new exemptions were added for farming operations and aircraft contrails.
Scope change
The bill's scope narrowed from a blanket ban on all geoengineering and weather modification activities to a specific prohibition only on aircraft contrails, while explicitly exempting farming and ranching operations.
SCOPE
The prohibition on geoengineering and weather modification was narrowed to specifically ban only aircraft contrails, removing the ban on other forms of weather modification.
DEFINITION
New definitions for 'Aircraft' and 'Airport' were added, and the term 'Entity' was replaced with 'Person' to align with state law.
EXEMPTIONS
Explicit exemptions were added for farming and ranching operations and for contrails produced by aircraft.
ENFORCEMENT
Enforcement mechanisms were updated to require credible reports from airport employees or aircraft owners, with specific certification requirements for the report.
REQUIREMENT
Penalties were changed from a felony with a $100,000 fine to a class A misdemeanor for the first offense and a class E felony for subsequent offenses.
Floor votes
How they voted
No floor votes recorded yet.
Full legislative history
Actions timeline
Total actions
10
Key actions
2
Committee
3
May 12, 2026
Lower · Passed
HCS Reported Do Pass (H) - AYES: 8 NOES: 3 PRESENT: 0
lower
May 11, 2026
Lower · Passed
HCS Voted Do Pass (H)
lower
Mar 24, 2026
Committee
Referred: Special Committee on Intergovernmental Affairs(H)
lower
Jan 5, 2026
Introduced
Prefiled (H)
lower
1 primary · 1 co-sponsor
Sponsors
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