US Coal Resurgence Drove 30% of Global CO2 Emissions Growth in 2025

A new report from the Energy Institute, Ember, Kearney Institute, and KPMG indicates that the United States was responsible for approximately 30% of the global increase in carbon dioxide emissions in 2025. This significant rise in U.S. emissions is primarily attributed to a substantial boost in coal-fired power generation. The report highlights a 10% surge in U.S. coal power output last year, a development that notably contributed to the overall global increase in CO2 levels. Economically, this trend suggests a potential short-term energy strategy focused on reliability and cost-effectiveness over environmental targets. Increased coal utilization could be driven by factors such as fluctuating natural gas prices, grid stability concerns, or a slower-than-anticipated rollout of renewable energy infrastructure. While offering immediate power generation solutions, this reliance on coal carries long-term economic implications, including potential carbon taxes, increased regulatory pressures, and a divergence from international climate commitments. The findings underscore a complex interplay between energy security, economic activity, and environmental policy. For the energy sector, it signals a potential pivot or delay in the transition away from fossil fuels in certain regions, impacting investment flows into renewables and traditional energy sources alike. For industries reliant on electricity, a cheaper, albeit dirtier, power supply could temporarily lower operating costs, but also expose them to greater carbon transition risks and reputational concerns. This data point offers a critical perspective on the pace and challenges of global decarbonization efforts, particularly within a major developed economy.