That's a gross mischaracterization of "climate change". The reason we say "climate change" is because there are many things happening and not all of them are just increased temperatures. So, global warming is a part of climate change. Go back in the 1970s and the term was "inadvertent climate modification".
Global warming is very real, and still happening, and the "climate change" models predict that we will continue get global warming as we have been. You ask for testable predictions, yes, there are testable predictions but climates are notoriously difficult to model accurately, but even with disagreements over models and problems with accuracy global warming still emerges as a clear prediction.
If you want to look for confirmation bias and "rejiggered data", then what you do is you cherry-pick specific time frames and regions where you can find cooling. That's always possible. Pick a hundred regions in the world and pick a hundred spans of time for each, and then take the few combinations that show cooling and you can paint a picture that hides the truth.
Global warming is very real, and still happening, and the "climate change" models predict that we will continue get global warming as we have been. You ask for testable predictions, yes, there are testable predictions but climates are notoriously difficult to model accurately, but even with disagreements over models and problems with accuracy global warming still emerges as a clear prediction.
If you want to look for confirmation bias and "rejiggered data", then what you do is you cherry-pick specific time frames and regions where you can find cooling. That's always possible. Pick a hundred regions in the world and pick a hundred spans of time for each, and then take the few combinations that show cooling and you can paint a picture that hides the truth.