I don't know if it puts the burden on the challenger, as Feynman said the duty of the scientist is to bend over backwards to explain all the ways that you might

I don't know if it puts the burden on the challenger, as Feynman said the duty of the scientist is to bend over backwards to explain all the ways that you might be wrong. The climate scientists do not do this; in fact they claim to understand complex cyclical systems that they've observed a small fraction of. I think they've greatly overplayed their hand and were very sloppy in their thinking. So in this case, I'd say the burden is on them - they are making extraordinary claims that are difficult to verify. Climate science is extremely hard - lack of data, a huge complex non-linear system, lack of understanding of subsystems -- yet they claim to have it figured out.