Overview
- Researchers forecast 38.1 billion tonnes of CO2 in 2025, an increase of about 1.1% from 2024.
- Fossil fuel use rose across the board, with coal up 0.8%, oil up 1.0%, and gas up 1.3%.
- Regional emissions are expected to grow in the United States (+1.9%), India (+1.4%), China (+0.4%), and the European Union (+0.4%).
- Natural carbon sinks have weakened since 2015, with land uptake down roughly 25% and ocean uptake down about 7.9%.
- The report warns the remaining 1.5°C carbon budget would be depleted before 2030 at current rates, with atmospheric CO2 nearing 425.7 ppm after 423.9 ppm in 2024, even as 35 countries cut emissions during economic growth and Amazon deforestation falls to its lowest since 2014.