Warmists blame disasters on climate. But?

Weather blocker: jet stream stops and causes disasters
But less is known about what triggers this abnormal activity.
Climate change has been cited as one possibility, but scientist Gerald Meehl of the National Centre for Atmospheric Research in Colorado told the New Scientist magazine there was no way to test the theory, as the resolution in climate change models was too low to replicate weather patterns such as blocking events.
Another cause could be low solar activity, Mr Fisher said.