Global CO2 emissions in 2024 increased 0.9% on the previous year, totalling 36.3 Gt CO2. These ongoing emissions further deplete remaining carbon budgets, with some estimates suggesting the 1.5 °C budget will be surpassed within the next 5 years — and may have been already.

Key points
* Global emissions averaged 99.3 Mt CO2 per day, with the largest growth coming from India and Russia, and a slight reduction from China.
* Global non-fossil energy development grew 6.2%, corresponding to an estimated 9.8 Gt CO2 of Scope 4 (that is, avoided) emissions in 2024.
* 0–205 Gt CO2 remains of the carbon budget to limit warming to 1.5 °C, suggesting permissible emissions have already been exceeded or could be depleted within 5.1 years; 860–955 Gt CO2 remains of the 2 °C budget, which could be depleted within 21.3–23.7 years (at 67% likelihood).