Among climate scientists specializing in climate sensitivity there is a clear trend toward lower and lower estimates of it, as the chart below shows. Why? Because the empirical measurements of GAT have fallen so much lower than model-generated predictions. In the chart, the dates are dates of publication (bottom axis) of peer-reviewed studies making estimates of climate sensitivity measured in degrees Celsius (left axis). ECS denotes “equilibrium climate sensitivity,” warming predicted in … [Read more...]