Well, not really. A simple blog post is never going to be much proof of anything. *
However, this blog post has four graphs. Two of the graphs, the third and fourth, are really quite useless. However, despite the author’s assertion, the first two graphs are actually quite a good demonstration that global warming is real. Of course, a longer trend would actually be better. But, even with this 140 year graph, the trend is abundantly obvious. The author has merely misread his own data.