How convenient it must be to always have a paper or two ready that show warming trends are wrong and that it will stop in the next few years. It does not matter that the previous papers in the same vein were proven wrong by facts, like the ones that attempted to draw horizontal lines over the temperature graphs. Just come up with a new theory, pick some data that fits (in paper #2, why solar cycles 21-23 and not the others? No proposed mechanism behind the theory? No problem.), and here's your new justification to do nothing.