# Gunnar Myhre Back to [[Topics/Climate Change Science and Policy Debate/Climate Change Science and Policy Debate|Climate Change Science and Policy Debate]] · [[Topics/Climate Change Science and Policy Debate/Research and Evidence|Research and Evidence]] **Role:** Senior researcher, CICERO (Oslo); author of the standard CO₂ radiative-forcing formula. - Lead author of **Myhre et al. 1998, "New estimates of radiative forcing due to well mixed greenhouse gases"**, *GRL* 25:2715 ([doi](https://doi.org/10.1029/98GL01908)). The paper gives **ΔF = 5.35 ln(C/C₀) W/m²**, about 3.7 W/m² per doubling. - Coordinating lead author of IPCC AR5 WGI Ch. 8 (radiative forcing) ⚠️ (from memory). - His formula refutes Clack's "each 100 ppm gives half the warming". See the [[Users/@PeterDClack/Post Analyses/Post Analysis - PeterDClack on Trace CO2 and the Logarithmic Curve (2026-10-09)|Oct 9 analysis]].