"Insights from Ice Age Discoveries: Reassessing Climate Change Alarms"

New research analyzing the last ice age suggests a decrease in the likelihood of the worst-case global warming scenarios, refining our understanding of climate sensitivity and predicting future warming under rising CO2. While the best-case and most likely warming estimates remain unchanged, the absolute worst-case scenario for doubling CO2 has been reduced from 5 to 4 degrees Celsius. By studying ancient climate conditions, researchers have narrowed the estimate of climate sensitivity, providing more confident predictions and indicating that the most extreme warming scenario is less likely.