St. Louis adopted a Climate Action & Adaptation Plan in 2017 and joined the Global Covenant of Mayors. The Board of Aldermen has issued climate-emergency resolutions, but most measures are non-binding goals rather than enforceable mandates on private property.
The 2017 plan targets 100% clean electricity by 2035 and 80% greenhouse-gas cuts by 2050 against a 2005 baseline, run through the Office of Sustainability. Implementation operates via Building Energy Awareness, the city Building Performance Standard rolled out 2020 (covering buildings over 50,000 sq ft), the municipal fleet electrification policy, and federal Inflation Reduction Act funds. The plan is policy guidance — only the Building Energy Performance Standard creates enforceable benchmarking compliance for large buildings.
Large-building owners who fail annual energy benchmarking under the Building Performance Standard face civil penalties and public disclosure on the city's portal.
See how St. Louis's climate emergency mobilization rules stack up against other locations.
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