So this chart is showing that weather balloons and satellites are showing no warming in the last 40+ years whereas other datasets are showing warming?
Actual measurements(Balloons) vs model predictions.
No, the lines are not data sets, they are the predictions of the computer models that are the only “proof” that human activity is causing global warming. The point of the chart is that the prediction of those models has been falsified by actual empirical data, and thus the theory behind them should be rejected.
The undoubted fact that CO2 is a greenhouse gas and that burning fossil fuels releases CO2 is about as useful for long-term climate prediction as general relativity (or its approximation by Newtonian gravity) is useful in predicting the behavior of a feather dropped from a great height in the earth’s atmosphere.
Those “other datasets” are the GLOBAL WARMING PREDICTIONS PROVED FALSE.