What do you think of the research that is the basis for the UN's IPCC TAG statement?

The 1998 published report of the research by Mann, Bradley, and Hughes (MBH98), which the UN Intergovernmental Panel on Climate Change (IPCC) adopted as their foundation for their theory of climate change Third essment Report in 2001, was the coincidental proxy, or correlation of tree rings related to known temperatures. This coincidence influences us all intimately whether it applies to unknown temperatures or not!! If policy makers go forward with their role in this man-made frenzy (referring to the Global Warming Hoax), you and I will pay higher prices for everything including taxes. Can you afford a hike in expenses (gasoline/transportation, heating/cooling, electricity, food, etc.) and taxes? For the sake of a coincidence? A coincidence that hasn't been duplicated, of which the statistical ysis can not be justified?