Warmist atmospheric science prof. Scott Denning on recent changes: "I wouldn’t rule out the idea that they were just ‘natural variability’ "

No consensus at CSU:  Warmist atmospheric science prof disagrees with Gore; but English professor says "the science is overwhelming that climate change is human-caused".

Climate change skeptics challenged | The Coloradoan | coloradoan.com

CSU atmospheric science professor Scott Denning said there is nearly unanimous agreement among scientists in his department that human-emitted carbon dioxide will warm the planet.
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But John Calderazzo, a CSU English professor who is the co-director of the Changing Climates lecture series at CSU, said understanding climate change is difficult for many people, but they need to approach the issue with the willingness to pay close attention to the details with an open mind.

That was the goal of Changing Climates, which has orchestrated 105 talks with 100 different people representing 28 different departments at CSU over the past four years as a way for faculty members to understand where each other stands on climate change.

Changing Climates was not a sponsor of Singer's talk Monday.

"It's an incredibly difficult topic," Calderazzo said. "It says such potentially depressing things about the Earth; it easily brings up denial. I don't want it to be true. Who does? The science is complicated."

But the science is also clear: "It's clear to anybody who reads the literature that the science is overwhelming that climate change is human-caused and it's occurring," he said Tuesday.
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“In Colorado, spring snowmelt has begun a little earlier, irrigation demand has increased a little, wildfires have increased, and most noticeably, pine beetle outbreaks have killed millions of acres of mountain forests,” Denning said. “If these effects speed up as the climate changes over the next 20 or 30 years, then we can say they were due to anthropogenic climate change.

“But I wouldn’t rule out the idea that they were just ‘natural variability’ because the big changes haven’t happened yet,” he said. “Stay tuned.”