Uhh, please check your facts. There are several proxy records available, such as stalactites, bore holes, ice cores and lake sediments. Tree rings are just one part of paleoclimate observational data. Global temperature records are available from 1850 onwards (from 1880 if you only include NOAA and GISS).

Between 1850 and 1960, all proxy reconstructions fully agree with the direct temperature readings. The only problematic one is the tree rings after 1960. Before 1960, all proxy reconstructions agree with each other, within experimental uncertainty. All proxy reconstructions except for tree rings show a dramatic increase in global temperatures.

It's also well-known and well-documented, and well-published, that some tree rings show a fall in temperature after 1960. This is not a new problem, and you are not the first person to suggest there may be a problem. Mind you, even if we had to scrap all tree ring data, or even all proxy reconstructions, it's still only a drop in the ocean of evidence.

Where is the fraud?

Actually, in addition to nuclear waste the world may be running out of uranium: http://www.lowtechmagazine.com/2007/08/nuclear-react-1.html And not only that, but uranium mining is a very polluting affair http://www.culturechange.org/cms/index.php?option=com_content&task=view&id=493&Itemid=66 http://www.technologyreview.com/blog/arxiv/24414/

(Of course, the World Nuclear Association downplays these issues: http://www.world-nuclear.org/info/inf75.html )

Ironically you need to burn fossil fuels in order to mine uranium; mining vechicles use diesel while the mining industry runs mainly on coal -- or have you heard of any solar-powered nuclear enrichment plants?