Even as emissions level off, carbon dioxide in the atmosphere is growing faster than ever. Here’s why

by Issy Borley, Cathy Trudinger and Ray Langenfelds
The Conversation in Phys.org
May 8, 2025
Category: Carbon, Climate & Bioenergy
Region: International

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. …CO₂ concentrations are increasing because we are still pumping massive amounts of long-buried CO₂ into our atmosphere. …natural carbon sinks are struggling to keep up. …This is a crucial moment. Our current rate of emissions will only cause CO₂ concentrations and global temperatures to rise. Natural carbon sinks will not pull out enough carbon to stabilize our climate on a timeframe meaningful to humans. The earlier the action and decrease in emissions, the better our future.

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