As Climate Change Report Draws Near, Deniers Raise Voices, Bury Heads Deeper

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As Climate Change Report Draws Near, Deniers Raise Voices, Bury Heads Deeper

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Hereâs a simple quiz: How do you know when youâre about to read a forehead-slappingly silly article about climate change? Check the venue: Is it the Daily Mail, the Wall Street Journal, the Financial Post, and/or anything owned by Rupert Murdoch and News Corp?

If yes, then, yes. Chances are, what youâve read only comes within a glancing blow of reality.

This week, the Intergovernmental Panel on Climate Change will release its fifth Assessment Report on the state of the climate. This overarching report gives summaries of the work and conclusions from numerous climate science research groups, has over 800 authors, and dozens of expert review editors (though not all are experts; anyone can sign up). Leaks have been rampant, and that has given people a chance to put their own spin on the report, as youâll see in a moment.

But: The bottom line is that the Earth is warming up. Although land and ocean surface temperatures have been relatively flat for a number of years, that is not the only or even best way to measure the amount of extra heat absorbed by our planet. Much of the heat has gone deep, dragged down into the ocean depths where it has been building up. A downswing in the Pacific oceans natural temperature cycles has temporarily masked the always-upward trend in surface temperatures. The past three decades have very likely been the warmest 30-year period in the last 800 years, and likely to have been for the 1400.

The cause? Us. Weâve been dumping carbon dioxide, a known greenhouse gas, into the atmosphere for decades, measurably increasing its amount (and affect). CO2 is transparent to visible light, but opaque to thermal infrared (or, more simply, heat). Light from the Sun warms the ground, but as we put more CO2 into the air, that heat has a harder time radiating away into space.

And so the Earth warms.

This is all pretty simple, and very evident. Unless, of course, you limit your reading to the venues listed in the first paragraph of this article. Then you get a very different, and grossly wrong, picture of our situation.

I can start with Matt Ridleyâs OpEd in the Wall Street Journal on Sep. 14, for example. In it, he tries to make the case that a warming Earth wonât be so bad. As things heat up, he claims, âthe overall effect of climate change will be positive for humankind and the planet.â

Oddly, he makes this statement without pointing to a single study backing up his claims. He just states it like itâs true. However, we know thatâs not the case. Let me be clear: Like any change, there will be some benefits, but the problem is we donât know exactly what those will be, and weâre gambling with the planetâs life support system. Ridley makes a few off-the-cuff claimsâfewer deaths due to extreme cold, extending the range of farming farther northâbut doesnât mention that long heat waves (which will get hotter) are deadly as well, and will last longer as we warm up, and that as farming moves north the folks at the southern end of the range will get pushed out. When a used car salesman only tells me the good stuff about his product, my skeptical alarm bells ring pretty loudly. Why should it be any different when it comes to climate?

And Ridley also doesnât mention the severe consequences weâre already seeing. The effects of a warming planet include polar ice melting, glaciers disappearing, changes in weather patterns on vast scales (including droughts in some places and torrents of rain in others), and huge and rapid pressure on the biosphereâfor example, pine trees dying en masse due to warmer weather extending the life cycle of mountain pine beetles, which in turn means more wildfires, and higher temperatures with accompanying lack of rain to keep them raging.

Ridley says a lot of other, um, odd things as well in his article. For specifics, try ClimateScienceWatch and DeSmogBlog. Climate scientist John Abraham also rebutted Ridleyâs claims on the WSJ itself.

Another newspaper, The Australian (owned by Murdoch), just ran an error-filled article about climate. Headlined âDoubts over IPCCâs global warming ratesâ, it then launches directly into the grossly wrong claim that warming trends reported in the new IPCC report are far lower than in the last report. Iâve covered this repeatedly; this claim is trying to compare warming trends over two different periods of time, which is a big no-no. Many climate scientists have responded to the article in The Australian, using words like âwrongâ, âmajor errorsâ, and âconfusedâ.

The article is pretty slanted in its style, too. For example, thereâs this gem:

After several leaks and reports on how climate scientists would deal with a slowdown in the rate of average global surface temperatures over the past decade, the IPCC was last week forced to deny it had called for crisis talks.
"Contrary to the articles the IPCC is not holding any crisis meeting," it said in a statement.

âForced to denyâ? That makes the IPCC sound guilty, doesnât it? This comes from a ridiculous claim made by David Rose in the UK tabloid The Mail on Sunday, saying that because of his attacks on the IPCC, they had to hold a âcrisis meetingâ to figure out how to deal with all this.  This simply isnât true at all, and apparently Rose made it up out of thin air. Climate scientist Ed Hawkins even told Rose that there was no crisis meeting, but The Mail has yet to retract this grossly incorrect statement (along with many, many other critical errors Rose made). And now The Australian has picked it up and used it to make a strawman argument against the IPCC.

As I pointed out in another article, this is exactly what I was expecting: One person in the deny-o-sphere makes some misleading or dead-wrong statement, and it gets picked up by all the other mouthpieces. They feed on each other like a snake eating its own tail.

And they wonât stop, especially now that the IPCC report is nigh. My advice: Wait to hear what the actual climate scientists who have made a career studying this field have to sayâwhich, in fact, is precisely whatâs done in the IPCC Assessment Report. And keep a critical eye on the claims made in the newspapers I listed above. They spread like mold on the underside of a log, and the best disinfectant is to haul them out into the sunshine for all to see.

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