It's a pity that his findings won't be scrutinized, because he doesn't have any climate related degree, and climatologists only recognize people with appropriate education.

If he really was not a crackpot then he would have published the papers first and only then put them up on his wife’s blog.

This whole story screams crackpot. Extraordinary claims require extraordinary evidence. To claim that all the scientists working in this field missed something this big for more than a century requires more than a few blog posts to take seriously.

Well, they missed the direction of ice cap change. I wouldn't be surprised if it turned out that they misunderstood this one too.

It is always possible, but when you are making big claims you need big evidence. The much more likely answer is the claimant has made a mistake himself.