evidence: Rep. Gary Palmer falsely claimed on a radio show that temperature data used to measure global climate change have been "falsified" and manipulated. Palmer, a Republican from Alabama, cited the so-called Climategate episode of five years ago, in which emails written by climate scientists purportedly showed evidence of data manipulation, and a more recent accusation of climate scientists tampering with data from temperature monitoring stations. The Climategate scandal has been subject to several separate investigations, all of which exonerated all scientists involved from any wrongdoing, and the latest data manipulation charges are a mischaracterization of standard and well-validated methods for adjusting temperature records to eliminate factors that could produce inaccurate readings. [...] Climate skeptics claimed that leaked emails between many climate scientists around the world showed there was a coordinated effort to inflate the global warming signal in temperature data. But several separate investigations, including by the U.S. Department of Commerce Inspector General and the Environmental Protection Agency, found no such wrongdoing or manipulation.