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Thursday, December 14, 2017

Reprinted with permission from Media Matters. 

The Weather Channel criticized Breitbart.com for falsely claiming that global warming temperatures have “plunged,” describing a Breitbart article as “a prime example of cherrying picking” data and pointing out that Breitbart denied the findings of “thousands of researchers and scientific societies.”

In a video accompanying a December 6 article, Weather Channel meteorologist Kait Parker explained to Breitbart, “Science doesn’t care about your opinion. Cherry-picking and twisting the facts will not change the future, nor the fact — not opinion — that the earth is warming. ”

The Weather Channel video and article roundly debunked the false and misleading claims in the November 30 Breitbart article by James Delingpole. In response to Delingpole’s claim that “[g]lobal land temperatures have plummeted by one degree Celsius since the middle of this year,” Parker pointed out that Delingpole had cherry-picked one set of data, adding in the video that “land temperatures aren’t an appropriate measure” and that the temperature decline disappears when you also account for sea surface temperatures. Delingpole also cited the science editor of the Global Warming Policy Foundation, David Whitehouse, to claim that “without the El Niño (and the so-called ‘Pacific Blob’) 2014-2016 would not have been record warm years,” yet Parker noted in the video that even if you “take out the El Nino spike in temperatures, 2015 and 2016 still come in as the warmest years on record,” as Carbon Brief has shown. Finally, Parker debunked Delingpole’s claim that a likely drop in global temperatures in 2017 is evidence against global warming, writing: “There is nothing unusual about a drop in global surface temperatures when going from El Niño to La Nina. These ups and downs occur on top of the long-term warming trend that remains when the El Niño and La Niña signals are removed.”

Parker also lamented the U.S. House Science Committee’s endorsement of the Breitbart article on Twitter and concluded her video with a helpful suggestion for Breitbart and a rallying cry for fellow scientists: “So next time you’re thinking about publishing a cherry-picked article, try consulting a scientist first, and to all my fellow scientists out there: Let’s make the facts louder than the opinions.”

Here is the video and full transcript of Parker’s comments (which are well worth watching):

KAIT PARKER: So last week, Breitbart.com published an article claiming that global warming was nothing but a scare and global temperatures were actually falling. Problem is, they used a completely unrelated video about La Nina, with my face in it, to attempt to back their point. What’s worse is that the U.S.Committee on Space, Science, & Technology actually tweeted it out. Here’s the thing: Science doesn’t care about your opinion. Cherry-picking and twisting the facts will not change the future, nor the fact — not opinion — that the earth is warming. So let’s break it down.

Their first claim is that “Global land temperatures have plummeted by one degree Celsius since the middle of this year — the biggest and steepest fall on record.” Now, that was based on one satellite estimate of global land temperatures, not a consensus. And second of all, land temperatures aren’t an appropriate measure. The earth is 70 percent water, and water is where we store most of our heat energy, so when you look at sea surface temperatures, and you combine that with land temperatures, you actually get a record high for November of 2016.

Their second claim: “It can be argued that without the El Nino … 2014-2016 would not have been record warm years.” Now, if you’re taking a look at the Arctic sea ice melting here in this video from NASA — when you actually normalize the data, aka take out the El Nino spike in temperatures, 2015 and 2016 still come in as the warmest years on record.

So that brings me to claim number three: “Many think that 2017 will be cooler than previous years.” Now, it is typical, yes, for temperatures to drop in a post-El Nino environment, but certainly not to record lows. If that claim was correct, we would have had global record lows all over the last century, and we haven’t seen that since 1911. The last time we fell below the 20th century average was in 1976, and guess what? That was directly following the 1974-1975 strong El Nino. So next time you’re thinking about publishing a cherry-picked article, try consulting a scientist first, and to all my fellow scientists out there: Let’s make the facts louder than the opinions.

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