WASHINGTON (Reuters) - The U.S. Senate's most vocal global warming skeptic, James Inhofe, on Thursday dismissed a U.N. meeting on climate change as "a brainwashing session."Inhofe, an Oklahoma Republican who will step down as chairman of the Environment and Public Works Committee in January, told a news conference, "The idea that the science (on global warming) is settled is altogether wrong."A majority of scientists, many in the U.S. government, accept that global warming is spurred by human actions and the emission of greenhouse gases. President George W. Bush said as much in July at a summit of industrialized nations. Inhofe...