Difference between revisions
climate-sensitivity
Status and infobox
- status:
—→ partial - kind:
—→ problem - year:
—→ 1896 - statement:
—→ How much does global temperature eventually rise if atmospheric CO2 doubles?
Source +22 −0
+---
+title: Equilibrium climate sensitivity
+kind: problem
+status: partial
+year: 1896
+authors: Svante Arrhenius; 1979 Charney report: 1.5–4.5 °C
+statement: How much does global temperature eventually rise if atmospheric CO2 doubles?
+space: climate
+---
+The Charney report's range stood for forty years. Combining process understanding, historical warming and paleoclimate narrowed it: the IPCC's 2021 assessment gives a likely range of 2.5 to 4 °C. Cloud feedbacks remain the biggest source of uncertainty, and they are what separates a manageable future from a severe one.
+
+Posed 1896, Svante Arrhenius; 1979 Charney report: 1.5–4.5 °C.
+
+## What would settle it
+
+A narrower observed range
+
+## Sources
+
+- [Wikipedia: Climate sensitivity](https://en.wikipedia.org/wiki/Climate_sensitivity)
+
+[[Space:climate|Climate]] · [[Continent:earth|Earth]]
Revision 122 as rendered
The Charney report's range stood for forty years. Combining process understanding, historical warming and paleoclimate narrowed it: the IPCC's 2021 assessment gives a likely range of 2.5 to 4 °C. Cloud feedbacks remain the biggest source of uncertainty, and they are what separates a manageable future from a severe one.
Posed 1896, Svante Arrhenius; 1979 Charney report: 1.5–4.5 °C.
What would settle it
A narrower observed range