Colorado Greenhouse Gas Pollution Reduction Report shows modest progress
Gov. Jared Polis’ administration released its final Greenhouse Gas Pollution Reduction Report this week, highlighting grants, policies and legal actions as evidence of progress toward cleaner energy.
The eighth update of the report details work from July 2025 through June 2026. It notes cuts in greenhouse gas pollution despite federal rollbacks of vehicle emissions standards and solar programs.
State officials project Colorado will achieve 84% of its 2030 emissions reduction goals with actions committed as of the end of 2023, reaching the full target by the end of 2032.
“Eight years ago, Colorado made a commitment to build a cleaner, healthier, more affordable energy future for every family across our state,” Polis said in a news release. “This report is proof that we are delivering on that commitment and our progress will save people money and protect our clean mountain air for generations, long after my administration.”
The report covered the state’s efforts in transportation, carbon management, geothermal, “natural and working lands,” and others.
Colorado Energy Office Executive Director Will Toor said addressing the root causes of climate change “makes Coloradans healthier.”
Missed targets and mounting costs
The state missed its 2025 statutory target of 26% reduction from 2005 levels. The latest inventory projects meeting that mark around 2027, with transportation and building sectors lagging, according to the report.
Utility bills tell a different story. Electricity and natural gas delivery charges have risen substantially since Polis took office in 2019, according to Public Utilities Commission filings.
The Common Sense Institute estimates environmental and emissions policies cost Colorado $18.3 billion in gross domestic product and $13.8 billion in personal income through 2023.
“The state is on track to fall just short … with even more expensive action on the horizon,” the think tank reported.
A 2023 Independence Institute analysis of the broader push toward 100% renewable electricity by 2040 estimated costs of $318.8 billion through 2050.
Sector gains
The report highlights $30 million approved by the Clean Transit Enterprise Board for 17 zero-emission transit vehicles, $15.2 million for 109 vehicles in the Clean Fleet program across 13 counties and $5 million for 56 new fast-charging ports at nine sites at a per-port cost just under $90,000 each.
Polis set an ambitious goal of 900,000 electric vehicles by 2030, but registrations have reached only 210,000 and slowed further after federal subsidies were cut. The administration responded with expanded state rebates and grants.
Critics, including the Independence Institute, point to reliability risks from coal retirements and renewables’ intermittency. The North American Electric Reliability Corporation has noted rising forced outage rates and regional grid stresses, per Independence Institute analysis.
The new state-mandated Model Low Energy and Carbon Building Code, effective in 2026, credits heat pumps favorably over natural gas. The Colorado Energy Office said it “fairly credit(s) energy savings from high-efficiency electric heating.”
Air quality and savings claims
State officials point to co-benefits for local air quality, particularly Front Range ozone. Most of Colorado meets federal standards except in the nonattainment area.
The “saving people money” claim faces scrutiny. Savings from heat pumps and EVs vary; upfront costs and rate increases from the transition often offset gains, according to analyses by the Common Sense Institute.
“We kept hearing these goals saying like, oh, we’re going to do this and it’s going to save you money. But we never actually heard anything from either the CEO or Polis himself saying, ‘OK, well what’s the transition overall going to cost?,’” said Jake Fogleman, energy policy analyst at the Independence Institute.
“Addressing the root causes of climate change makes Coloradans healthier and has been a cornerstone of the Polis administration over nearly eight years of work,” said Toor in a news release. “This report is a great reminder that Colorado has never wavered when it comes to confronting this issue head-on, and that we continue to make meaningful headway in cutting greenhouse gas emissions, which impact all of us.”