The theory that entirely natural sun cycles best explain warming patterns emerged years ago, but the Danish scientists "soon found themselves vilified, marginalized and starved of funding, despite their impeccable scientific credentials." Physicists at Europe's most prestigious CERN laboratory tried to test the solar theory in 1996, and they, too, found their project blocked. This fall, the top scientific journal Nature published the first experimental proof -- by a team of 63 scientists at CERN -- that the largest factor in global warming is the sun, not humans. But the director of CERN forbade the implications of the experiment to be explained to the public: "I have asked the colleagues to present the results clearly, but not to interpret them. That would go immediately into the highly political arena of the climate change debate."