Texas Congressman Joe Barton, along with most members of a Republican delegation from the U.S. House of Representatives, on Friday (18 December 2009) in Copenhagen dismissed mounting evidence that climate is rapidly changing, that the impacts already are evident, and that it is being driven by rapidly increasing concentrations of greenhouse gases emissions from human activities. "We don’t have an icecap in Texas," said Barton, apparently suggesting that melting polar ice was not a concern in his state.