Atmospheric CO₂ concentrations are surging, even as emissions level out. Natural carbon sinks are showing signs of faltering ...

The latest anomaly in the climate system that can’t be fully explained by researchers is a record annual jump in the global mean concentration of carbon dioxide in the atmosphere measured in 2024.

The amount of carbon dioxide in the atmosphere last year grew ... that Earth’s ecosystems are so stressed by warming they can no longer absorb much of the pollution humanity emits.