CO2 emissions
Coverage of CO2 emissions in the Nexus archive.
- CO2 emissions from US power sector rose 4% last year
CO2 emissions from the US power sector increased by 4% last year due to higher electricity generation and coal use, according to the U.S. Energy Information Administration.
- New combined-cycle power plant in Baja California to lower bills and emissions
President Claudia Sheinbaum and Baja California Governor Marina del Pilar Ávila Olmeda inaugurated the González Ortega Combined-Cycle Power Plant, operated by the Federal Electricity Commission, which aims to reduce annual CO2 emissions by 3.23 million tonnes and lower energy bills. The project is part of a 73.9 billion peso federal investment in Baja California’s electrical grid, alongside a 1.485 billion peso electricity subsidy for over 1.37 million residents in Mexicali and San Felipe.
- Analysis: Energy-efficient air conditioning could save Indian homes 69bn rupees a year
Energy-efficient air conditioning units could save Indian households ₹69bn annually, according to Carbon Brief analysis. Shifting to five-star rated AC units instead of two-star could reduce CO2 emissions by nearly 5Mt yearly. India's AC demand is rising due to heatwaves, with sales increasing by over 25% annually since 2021.
- Analysis: China’s CO2 climbs 2% in early 2026 due to ‘wasted’ wind and solar
China’s CO2 emissions rose 2% in early 2026 due to increased coal and gas use amid a 23% year-on-year rise in wind-power capacity and 33% for solar. The surge in 'wasted' wind and solar output, caused by inflexible coal power management and grid systems, led to a 4% rise in power-sector emissions, despite record renewable energy additions.
- German town prints its own cash to cut CO2 emissions
A German town in Bavaria created the 'Chiemgauer' currency as a school project to support local businesses and reduce CO2 emissions. The initiative now helps cut emissions by promoting local economic activity.
- Germany news: 2030 climate goals in danger, experts warn
Germany's 2030 climate goals are at risk due to higher than planned CO2 emissions, according to experts. The government is also planning to increase civil defense measures while Chancellor Merz meets with Bulgarian Premier Rumen Radev, who holds euroskeptic views.
- China goes electric, but can it get off coal?
China, the world's leading clean energy producer, faces the challenge of reducing its heavy reliance on coal despite being the largest CO2 emitter globally. The article suggests that coal-fired power may have peaked as China accelerates its transition to renewable energy sources through ongoing electrification of its economy.