evidence: - Ron Johnson mouthed to a GOP luncheon that climate change is "bullsh--," CNN reported. [...] Republican Sen. Ron Johnson of Wisconsin called climate change "bullsh--" during a GOP luncheon in early June, just weeks before a heat wave claimed dozens of lives in the Pacific Northwest. Scientists have linked the historic high temperatures to climate change. "I don't know about you guys, but I think climate change is — as Lord Monckton said — bullsh--," Johnson said during the Republican Women of Greater Wisconsin Luncheon at Alioto's in Wauwatosa, Wisconsin, in comments caught on video and first reported by CNN. "By the way, it is."