Emissions of climate-warming greenhouse gases in the U.S. increased last year, outpacing the growth of the country’s economy, according to a recent analysis.

The country’s greenhouse gas emissions rose by 2.4 percent in 2025 compared to the previous year, following two years of emissions decreases, according to the Rhodium Group, an independent research firm. The U.S. economy, measured by real gross domestic product, grew by 1.9 percent.

The group attributed the increase to a relatively cold winter that increased heating demand in buildings, more industrial activity, higher natural gas prices that made burning coal more economically favorable, and increased oil and gas production.

The U.S. has seen an overall declining trend in greenhouse gas emissions over the past 20 years, with emissions dropping 20 percent from 2005 to 2024, according to the Associated Press. Despite their growth compared to 2025, U.S. emissions were down 6 percent compared to 2019 and 18 percent compared to 2005, the Rhodium Group’s report states.

Study co-author Ben King told the AP that the environmental regulatory rollbacks proposed by the Trump Administration have not been in place long enough to show up in the 2025 data.

“It’s one year of data so far,” King told the outlet. “So we need to see the extent to which this trend sustains.”