Record CO2 levels in 2023 add pressure to climate targets
Global greenhouse gas levels reached unprecedented highs in 2023, driven by ongoing fossil fuel use, wildfires, and weakening carbon sinks, according to the World Meteorological Organization.
In short:
- The WMO found CO2 concentrations hit 420 ppm in 2023, marking a 51% rise from pre-industrial levels, and methane levels increased to 1,934 ppb.
- Increasing emissions counter recent pledges to limit global warming to 1.5-2°C, with projections now anticipating a 3°C rise by century's end.
- Scientists estimate $1-2 trillion in annual investments are needed to reach net-zero emissions by mid-century, avoiding catastrophic warming impacts.
Key quote:
“These are more than just statistics. Every part per million and every fraction of a degree temperature increase has a real impact on our lives and our planet.”
— Celeste Saulo, secretary-general of the WMO
Why this matters:
Rising greenhouse gases threaten ecosystems, drive extreme weather, and challenge global warming limits, raising concerns over health, economies, and biodiversity. Immediate emissions reductions and substantial investments are essential to stabilize the climate and prevent severe consequences.
Related EHN coverage: Climate change could slash staple crops.
