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Rapid City presents I‑90 Corridor climate plan, targets 31% emissions cut by 2050

Rapid City Public Works · November 26, 2025
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Summary

LaSanne Zeller presented the I‑90 Corridor climate action plan—developed with a $1,000,000 EPA planning grant—showing corridor emissions of about 3.4 million metric tons CO2e and recommending a realistic 31% reduction scenario that would lower per‑capita emissions to roughly 9.3 by 2050.

LaSanne Zeller, sustainability and stewardship program development manager in Rapid City’s Public Works Department, presented a comprehensive I‑90 Corridor climate action plan Tuesday that models greenhouse‑gas reductions for a seven‑community region stretching roughly from Spearfish to Box Elder.

The plan, funded by a four‑year, $1,000,000 EPA planning grant awarded in 2023, expands Rapid City’s earlier inventory to cover the I‑90 Corridor (including Mead and Pennington counties). Zeller said the corridor produced about 3,400,000 metric tons of carbon dioxide equivalent in 2021 and estimated per‑capita emissions at about 23.4; Rapid City alone was about 19 per person in the same baseline year.

The plan models three scenarios and recommends a mid‑range target: a 31% reduction in total emissions by…

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