When you look at the statistical evidence, both Burns and Markstrom make valid points, according to Nolan Doesken, a climatologist at the Colorado Climate Center at Colorado State University.People usually base perceptions about climate change on just the past few years rather than on the past few decades “because that’s how memory works,” Doesken said. And five out of the past six summers, starting in 2000, have been warmer than average, both at day and at night, he said.

link