March 2008

From IceCap.us

As a climate scientist, I would like to see some answers to a few basic global warming science questions which I’m sure the U.N.’s Ministry of Global Warming Truth (also known as the Intergovernmental Panel on Climate Change, IPCC) can handle. After all, since they are 90% confident that recent global warming is manmade, they surely must have already addressed these issues:

1) Why are ALL of the 20+ IPCC climate models more sensitive in their total
cloud feedback than published estimates of cloud feedbacks in the real climate system (Forster and Gregory, J. Climate, 2006)? If the answer is that “there are huge error bars on our observational estimates of feedback”, then doesn’t that mean that it is just as likely that the real climate system is very insensitive (making manmade global warming a non-problem) as it is to be as sensitive as the IPCC models claim it is?

2) And regarding those observational estimates of (somewhat) positive cloud feedbacks: How do you know that the cloud changes that have been observed during temperature changes really are “feedbacks”? In other words, how do you know that the temperature changes caused the cloud changes, rather than the other way around? This basic distinction between cause and effect is critical because such a misinterpretation will ALWAYS make the climate system look more sensitive than it really is (e.g., it is energetically impossible for more low clouds to cause a warming). Doesn’t it seem like a coincidence that the ONE case were we know that there was a huge non-cloud forcing (the 1991 eruption of Mt. Pinatubo) resulted in a negative solar shortwave cloud feedback, whereas all other periods showed supposedly positive shortwave cloud “feedback”?

3) As a follow on to question #2, we all agree that there has been strong global-average warming since the 1970’s. Well, how do you know this wasn’t the result of a small, natural change in cloud cover? Doesn’t it seem like (another) coincidence that the Pacific Decadal Oscillation (PDO) just happened to shift to a different mode in 1977, about the time that the warming started? (Please don’t say that the greater warming over land versus ocean is consistent with manmade greenhouse gas forcing…because it is also consistent with ANY kind of change in the Earth’s radiant energy budget, whether natural or manmade.)

The fact is, we DON’T know how much of recent warming is natural, simply because we don’t have good enough global cloud observations back to the 1970’s (and earlier) to measure any long-term changes in cloudiness to the required accuracy – 1% or less.
The same cause-versus-effect uncertainty is true of any other climate variable as well, for instance water vapor, our main greenhouse gas. A small change in precipitation
efficiency (the main process which ultimately limits the strength of the natural greenhouse effect) could cause a change in average water vapor content, which then would change the average temperature. In other words, increased water vapor doesn’t have to only result from warming…warming can also result from increased water vapor.

The fact that we don’t have a good enough understanding (or observations) of cloud changes, or precipitation efficiency changes, on decadal time scales to document such potential mechanisms seems like pretty weak justification for blaming all of our recent warming on mankind. And if you say, “well, the IPCC doesn’t claim that ALL of the warming is manmade…”, then tell me: About what percentage of the warming IS natural, and how did you come up with that quantitative estimate?

I fear that the sloppy science that too many climate researchers have lapsed into could, in the end, hurt our scientific discipline beyond repair. The very high level of certainty (90%) claimed by the IPCC for their manmade explanation for warming can not be justified based upon the scientific evidence, and is little more than an expression of their faith that they understand the causes of climate variability – which they clearly don’t.

For those scientists who value their scientific reputations, I would advise that they distance themselves from politically-motivated claims of a “scientific consensus” on the causes of global warming — before it is too late. Don’t let five Norwegians on the Nobel Prize committee be the arbiters of what is good science.

European leaders have pledged to lead a world crusade for a "low-carbon" economy but promised that energy-hungry industries would not be sacrificed on the altar of climate change.

Europe's chances of spearheading a global post-Kyoto climate change accord were jeopardised yesterday when Germany secured pledges that several of its heavy industries could be protected from international competition and exempted from the EU's plan to combat global warming.

Tony Blair on Saturday urged the world's heaviest polluters including the United States and China to agree to binding emissions cuts, saying failure to act on global warming would be "unforgivably irresponsible."

Same time, next year

by Julie Walsh on March 14, 2008

The EU has just decamped from its most recent summit at which it was to finally agree to those individual country quotas to arrive at their post-2012 promise to reduce GHG emissions, as a group of nations, to 20% below 1990 levels.

 

Of course, this was the most recent in a series of meetings following on the heels of their most recent promise to announce these quotas, which had been postponed until December 2007 after an inability to agree on individual member state quotas, and was ultimately scuppered.

 

See, this is where this "world leadership", in making such group-wide promises, at least, gets difficult. Attentive readers will recall German Chancellor Angela Merkel's revealing, possibly too-clever admission to Der Spiegel on March 9, 2007:

 

Addressing the need for a post-2012 “Burden Sharing Agreement” that assigns real cuts to countries previously given a free-ride, German Chancellor Angela Merkel “admitted that tough negotiations are still ahead. The compromise would be a tough task. The beauty is, Merkel said smiling, that each member state thinks they're a special case. ‘That makes us all equal’”. (emphasis added)

 

Apparently all of those special cases are holding out to make sure it's the fellow behind the tree who takes the hit. You will recall the initial promise shared by every EU-15 nation, to reduce emissions by 8% below 1990 levels on average over 2008-12, was abandoned (as is permitted under Kyoto’s Article 4) in favor of collectivizing their emissions (it’s Europe, remember). This allowed Spain, Greece, Ireland, Portugal and others to swap their promise of a reduction into a promise of an often-steep increase, France to trade hers in for a promise of no reduction at all, Italy for a very slightly smaller promise and so on all because of two political decisions preceding and unrelated to Kyoto.  Those were the UK’s “dash to gas” and shutting down East Germany, for all intents and purposes, after reunification made it smart to replace Soviet-era industrial capacity with cleaner, West German capacity.

 

Those two “one offs” having been exercised, this leaves European countries stuck with the need to meet their promises of emission reductions with – gasp – actual reductions (or even far more massive wealth transfers to exempt countries like China under the HFC scam, for example).

 

So, in classic form, they have trumpeted an historic agreement to agree later, this time by December 2008. We’ll be waiting.

Climate Storytime

by William Yeatman on March 14, 2008

Ellen Schroeder Mackey recently wrote an opinion piece for the Denver Post about the effects of man-made climate change. The piece is aptly summarized by the third paragraph, which reads:

“When we gum up the mechanisms that balance the ecology of the Earth, we will reach a tipping point of changes cascading so quickly that we will be unable to cope with them.”

That’s a pretty conclusive statement, is it not? So one might expect that Ms. Mackey is a scientist of some sort, right?

Wrong. Her byline describes her as a “librarian and storyteller.”

So the Denver Post went with an article about the impacts of climate change written by a “storyteller.” I am floored by the rich cosmic irony at work here.

BTW, a friend of the Cooler Heads Coalition, Denver’s Dave Bufalo wrote this great letter in response to Ms. Mackey’s piece.

Carbon Fiat

by Julie Walsh on March 14, 2008

in Blog

True, the EPA's ruling is a minor setback for the global warmists. But it may pour the bureaucratic foundation for their larger policy goal, which is economy-wide regulation of carbon dioxide. Worse, the Bush EPA may do so by rewriting current environmental law, with little or no political debate.

From JunkScience.com

Washington Post reporter Juliet Eilperin leads the pack in this year’s contest for biased climate journalism.

Eilperin’s March 10 article entitled, “Carbon Output Must Near Zero To Avert Danger, New Studies Say” has the same sort of journalistic objectivity that one might expect from totalitarian state-controlled media.

With nary a critical word about the computer models used to project increases in global temperature, Eilperin touted two new model-dependent studies that “suggest that both industrialized and developing nations must wean themselves off fossil fuels by as early as mid-century in order to prevent warming that could change precipitation patterns and dry up sources of water worldwide.”

“Using advanced computer models to factor deep-sea warming and other aspects of the carbon cycle that naturally creates and removes carbon dioxide, the scientists, from countries including the United States, Canada and Germany, are delivering a simple message: The world must bring carbon emissions down to near zero to keep temperatures from rising further,” Eilperin reported.

But none of the models in the studies — nor for that matter any other mathematical model of global climate — has proven to be particularly useful. No model has been validated against historical climate data. So why would any rational person assume that they can be used to predict future climate or serve as a basis for developing national energy policy?

As reported in this column last December, global climate models uniformly predict significantly warmer atmospheric temperatures than have actually occurred.

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Such model failure should come as no surprise since they have many built-in biases, including the unproven assumption that atmospheric carbon dioxide drives global climate. But all the available real-life data — including 20th century records and ice core samples stretching back 650,000 years — fail to support such a cause-and-effect relationship. The ice core samples show, in fact, an opposite relationship.

Eilperin, who has long reported on climate for the Washington Post, must know about the models’ problems, but she apparently chooses not to report it.

In her March 4 Post article, Eilperin mentioned a report by a number of climate experts from around the world entitled, “Nature Not Human Activity, Rules the Climate.” She even interviewed one of the experts for her story.

A section of that report, entitled “Climate Models Are Not Reliable” discusses in plain language how climate models don’t consider solar dimming and brightening, don’t accurately control for clouds, don’t simulate the potential feedback effects of water vapor, don’t explain many features of the Earth’s observed climate, and don’t produce reliable predictions of regional (let alone global) climate change.

At JunkScience.com, we label climate modeling as PlayStation® Climatology, with no disrespect intended toward Sony since its PlayStation games are in fact what they purport to be — just games.

Not content with ignoring viewpoints she doesn’t like, Eilperin goes on to diminish, if not ridicule critics of her apparent point of view.

Eilperin’s March 4 article featured four ad hominem attacks from three environmental activists, abusing those who question global warming orthodoxy as members of a “flat Earth society” and participants in the “climate equivalent of Custer’s last stand.” If Eilperin wants to poke fun at those who disagree with her on public policy issues, she ought to write an opinion, rather than a news column.

Another disturbing aspect of Eilperin’s article was the accompanying photo of downtown Beijing.

The photo was captioned, “A heavy haze could be seen in Beijing in August 2007. Two recent reports call for a heightened global effort to reduce carbon emissions.”

The juxtaposition of the article and photo clearly implied that unless we cut carbon dioxide emissions, U.S. cities would soon look like Beijing.

But as virtually anyone who breathes knows, carbon dioxide is an invisible gas. Not only can you not see it, there’s no possible way for carbon dioxide emissions to cause smog, haze or whatever was fouling Beijing’s air in the photo.

The irrelevant and misleading nature of the photo has been pointed out to Eilperin, Washington Post ombudsman Deborah Howell and the paper’s editors. As of the writing of this column, none have responded and it remains to be seen whether the Washington Post has the journalistic integrity to remove the photo from its web site and publish a correction in its print edition.

It’s quite possible that if Eilperin and the many other members of the mainstream media who so far have been in the tank for global warming started reporting on the very real debate about climate model validity rather than simply regurgitating what the agenda-driven modelers tell them, then we could avert the looming national economic disaster that Congress is preparing for the next president to sign into law.

More than 20 years ago, climate scientists began to raise alarms over the possibility global temperatures were rising due to human activities, such as deforestation and the burning of fossil fuels.

Despite global alarm about the threat that fossil fuel combustion poses to Earth's climate, coal appears poised to recover its 19th-century prominence as the world's top energy source, delegates at the Globe 2008 conference heard on Wednesday.