Climate Change: "Many, Many Smoking Guns"

"When the UN-organized Intergovernmental Panel on Climate Change (IPCC) presents its projections for global warming and future climate changes tomorrow, the report's hallmark will be a far greater level of certainty and precision than what was expressed in the last IPCC...

Polonium-210 one of world's rarest elements

"LONDON, England (AP) -- Polonium-210 -- the radioactive substance used to poison a former Russian spy in London -- is one of the world's rarest elements, first discovered in the 19th century by scientists Marie and Pierre Curie.  It is highly lethal when ingested, and...