Otherwise it's just another opinion.
I may misunderstand your post, but there is no analysis that shows that there are temperature increases and furthermore there are no studies that prove temperature fluctuations are man-made. In fact there is not one single peer-reviewed study that proves that temperature is linked to C02. This is precisely why Mr. Hansen will not allow the temperature data to be released and why he will not publish the methodologies used by NASA when adjusting temperature data for errors. He knows that that real scientists would expose his errors and make him out as the fraud that he is. His career would end, the money would dry up and he would die a laughingstock. Any suggestion that Hansen has proof of man-made warming is pure speculation, a guess, until the data is properly analyzed.