Climate TRACE reported that total global emissions in the first half of 2025 are 30.99 billion tons CO₂e. This is 0.13% higher than emissions were in the first half of 2024. Global greenhouse gas emissions for the month of June totaled 5.12 billion tons CO₂e. This represents an increase of 0.29% vs. June 2024. Global methane emissions in June 2025 were 34.82 million tons CH₄, an increase of 0.49% vs. June 2024, according to Climate TRACE data.
Key takeaways:
· In the first half of 2025, the sector driving the most growth in emissions was fossil fuel operations, where emissions rose by 1.5% (an increase of 77.65 million tons of CO₂e). The United States accounted for more than half of that increase. Manufacturing emissions also rose in the first half of 2025, growing by 0.3% (an increase of 18.75 million tons of CO₂e), led by increases in India, Vietnam, Indonesia, and Brazil.
· Meanwhile, global power sector emissions saw the biggest decline in the first half of 2025, falling by 0.8% (a decrease of 60.27 million tons of CO₂e), driven almost entirely by declines in China and India, where power emissions were 1.7% lower and 0.8% lower than their totals in the first half of 2024, respectively.
· The first half of 2025 shows small but positive progress on decarbonization in China, Mexico, and Australia. China’s emissions decreased 45.37 million tons CO₂e, or 0.51% compared to the first half of 2024. Mexico’s emissions decreased 7.78 million tons CO₂e, or 1.71% compared to the first half of 2024. Australia’s emissions decreased 6.56 million tons CO₂e, or 1.51% compared to the first half of 2024. However, some of the world’s other major emitting economies, including the United States, India, the EU, Indonesia, and Brazil, saw emissions rise in the first half of 2025.
- Agriculture emissions were 641.40 million tons CO₂e, unchanged vs. June 2024.
- Manufacturing emissions were 929.05 million tons CO₂e, a 0.02% increase vs. June 2024.
- Transportation emissions were 759.10 million tons CO₂e, a 0.77% increase vs. June 2024.
- The urban areas with the highest total greenhouse gas emissions in June 2025 were Shanghai, China; Tokyo, Japan; New York; Houston; and Los Angeles.
- The urban areas with the greatest increase in absolute emissions in June 2025 as compared to June 2024 were Pittsburgh, Pa.; Xinyu, China; Tokyo, Japan; Baotou, China; and Algeciras, Spain. Those with the largest absolute emissions decline between this June and last June were Leipzig, Germany; Anqing, China; Duren, Germany; Houston; and Anchorage, Ak.
