Over the last decade, humanity’s emissions of carbon dioxide (CO₂) have stabilized after a period of huge growth. Average growth is now down to just 0.6% per year, compared to 2% per year in the previous decade. But leveling off isn’t the same as declining—and we’ve leveled off at a very high rate of emissions. The Global Carbon Project estimates human activities released a record high of 10.2 gigatons of carbon (GtC) in 2024.