The Climate Web
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The Climate Web 10/5/2026
Science TOC
S - Impact Attribution
2021 Koonin_Unsettled: What Climate Science Tells Us, What It Doesn’t, and Why It Matters
2. Part 1 - The Science
3. Emissions Explained and Extrapolated
Parents
2. Part 1 - The Science
Children
CO2 concentrations are much lower today than in the past
Forecasting climate requires big assumptions about population and the economy
No expert disagrees with fact that anthropogenic emissions are rising and impacting the atmosphere
Stabilizing human influences on the climate is “a practical impossibility.”
The IPCC’s scenarios range widely in all respects
The lifetime of CO2 in the atmosphere is an impediment to influencing climate outcomes
While climate forecasts are reported as facts, history suggests just how big the uncertainties are