France greenhouse gas emissions fall 4.8% in 2023 France’s greenhouse gas emissions fell 4.8 percent in 2023 compared to 2022, putting it on track to achieve its goal of reducing CO2 emissions by 50 percent by 2030 on 1990 levels. But after the energy sobriety efforts of last winter sparked by rising oil and gas prices, critics question whether this is a sustainable trend, or an anomaly.