Climate odels

Weekly Climate and Energy News Roundup #333

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Brought to You by www.SEPP.org, The Science and Environmental Policy Project

By Ken Haapala, President

Biased: TWTW has been accused as being biased. It is biased against speculative ideas being used to justify far reaching government policy, particularly if the primary support of these ideas are complex mathematical models that have not been validated. Politicians and the public are often overwhelmed by such models even though the models may contain significant omissions and logical errors. Government policies based on speculative thinking can be harmful to the economy and to humans.

Over the past two weeks, TWTW discussed significant problems with the reports of the UN Intergovernmental Panel on Climate Change (IPCC) and its followers such as the US Global Change Research Program (USGCRP). Physicist Richard Lindzen brought up two: the climate system is unrealistically over-simplified and the global climate models fail to address critical issues regarding clouds and water vapor. Water vapor is by far the dominant greenhouse gas.

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September 2018 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

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By Bob Tisdale – Re-Blogged From WUWT

This post provides updates of the values for the three primary suppliers of global land+ocean surface temperature reconstructions—GISS through September 2018 and HADCRUT4 and NOAA NCEI (formerly NOAA NCDC) through August 2018—and of the two suppliers of satellite-based lower troposphere temperature composites (RSS and UAH) through September 2018. It also includes a few model-data comparisons.

This is simply an update, but it includes a good amount of background information for those new to the datasets. Because it is an update, there is no overview or summary for this post. There are, however, simple monthly summaries for the individual datasets. So for those familiar with the datasets, simply fast-forward to the graphs and read the summaries under the headings of “Update”.

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At IPCC talks Trump Administration emphasizes scientific “uncertainty” and “value of fossil fuels”… MAGA!

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By David Middleton – Re-Blogged From WUWT

From the No Schist Sherlock files of the American Association for the Advancement of Science of America…

Top researchers are huddled with government officials in South Korea this week to confront the scientific consensus that maintaining a safe global climate will require immediate and aggressive action… Continue reading →

False Consensus: The Onion Spoofs Climate Science

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By Robert Bradley Jr. – Re-Blogged From WUWT

The Onion’s recent satire on climate science, “Climate Researchers Warn Only Hope For Humanity Now Lies In Possibility They Making All Of This Up,” presents a paradox worth solving.

“Saying the time to act has come and gone,” the piece begins, “a group of researchers from the U.N. Intergovernmental Panel on Climate Change warned Tuesday that any hope for the future of humanity now hinges on the possibility that scientists like themselves are simply making all of this up.” The spoof continues:

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U.N.’s High-End Global Warming Emissions Scenario

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The amount of future warming is predicated on the amount of emitted greenhouse gases and the sensitivity of earth’s surface temperature to changes in their concentrations. Here we take a look at the emissions component.

By PATRICK J. MICHAELS – Re-Blogged From http://www.WattsUpWithThat.com

The U.N. currently entertains four emissions scenarios, all expressed as the change in downwelling radiation (in watts/meter-sq, nominal year 2100) towards the surface that results from an increase in the atmospheric concentration of certain greenhouse gases. They are called “representative concentration pathways,” or RCPs.

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