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More Evidence That Anthropogenic Global Warming Is Not True

If rising CO2 content in the atmosphere, caused by human activity, is responsible for rising global temperatures, then increases in CO2 content should precede rises in temperature. They don't; rising CO2 content follows rising temperatures and is caused by them. ShrinkWrapped brings together the evidence in recent scientific publications.

Anthropogenic Global Warming is the phlogiston theory of our time. It is about to die.

NASA Says Earth Entering New Ice Age

The major forces that drive climatic change on Earth, primarily the sun, are arranging physical forces in such a way that global warming is countered and the Earth is now entering a new ice age. So much for an inconvenient truth.

Global Temperature: What Is The Issue?

The fundamental question is not whether global temperatures have risen from the 1970s to the 1990s. The rise is demonstrably true. The question is whether the rise in temperature represents a cycle or a long-term (in geological terms) trend. The IPCC concludes (point 1) that the rise represents a long-term trend and (point 2) that the rising trend is physically caused by increase in CO2, which (point 3) is based on a geological-environmental theory that atmospheric CO2 levels are the driver of climate change over geological time periods. The reason that some observers are skeptical of the IPCC conclusions (1 and 2) is that it is a very long inferential jump from the evidence regarding temperature rise from 1970s to 1990s to the IPCC conclusions to the CO2 theory (point 2). Points 1 and 2 are based on correlational analyses that are subject to serious anomalies (e.g., sunspot cycle, El nino cycle). Repeating and reillustrating the facts about the rise in temperatures of the recent decades does nothing to make the IPCC conclusions more credible. It is not serious scientific debate to argue that charts of the temperature rise prove any hypotheses about causation; it is only political hectoring that demeans science.

The CO2 Climate Cycle and Maintenance of the Earth's Global Temperature

NewScientist reviews the hypothesis of a CO₂ climate cycle, the state of the debate over its role in stabilizing the earth's global temperature, status of attempts to model the cycle over the earth's history, and assessment of evidence regarding the cycle and the model. The reviewer takes the approach that anomalies (e.g., glaciers increasing as CO₂ rises, rather than decreasing as the hypothesis predicts) have not invalidated the hypothesis. Anomalies only point to secondary causal agencies, yet undiscovered, at work to counteract the thrust of the main agencies involved in the cycle. Much of the debate over the model concerns the multiplier effect of elevation in CO₂ levels in the cycle. Does doubling the level of CO₂ raise global temperature on average by one, or two, or three degrees? Current consensus seems to be settling on 3 degrees. The review does not address the issue whether increase in CO₂ emissions by human activity have caused the rise in global temperature since the 1960s.

Intensive Agriculture Has "Massively Slowed" Global Warming

The development of intensive agriculture since 1950, a green revolution that boosted productivity permitting more farming output on less land, reduced by about one-third the amount of green house gasses that would have been emitted had the green revolution not occurred. Green house gas emissions were lowered because less forest acreage was cut, than would have been required to keep agricultural output up in the absence of the green revolution, and because of the cumulative effects of fertilizer, pesticides, and hybrids that boosted productivity. Study by scientists of the Carnegie Institution of Washington, D.C.

Natural Climate Cycles Explain Global Warming

Roy Spencer, Ph.D. demonstrates that the Pacific Decadal Oscillation, the Atlantic Multi-decadal Oscillation, and the Southern Oscillation Index (of El Nino and La Nina cycles) can account for the entire 20th century temperature series for North America.  (H/T The Astute Bloggers.)

No Warming In US Since 1973, Once Spurious Urban Heating Effect Removed from Data

Re-analysis of raw surface temperature data in the US from 1973 to 2006 shows there likely was no warming over that period. One the major problems with surface temperatures is to differentiate between the urban heating effect and general atmospheric temperature. Cities generate their own heat, which raises recorded temperatures in and near them. To determine regional atmospheric temperatures, the urban heat effect must be subtracted from recorded temperatures. How to do this correction is the source of much of the statistical hocus pocus that has, apparently, led the main advocates of global warming astray. A re-analysis of the US temperatures uses a new procedure to measure the urban heat effect by categorizing cities into 4 classes by population density. Urban heat effect increases with population density (as population density represents urban concentration). The result of the analysis shows that it is likely there was no general atmospheric warming of the US over the years 1973 to 2006 (the years of the reliable raw data). The report and the charts of the analysis are quite readable. Read them for yourself.

(H/T The Astute Bloggers)

Bad Science Was Behind the IPCC Thesis 1 AGW

So says the British Institute of Physics after the ClimateGate emails were released. But I warned about the problem with the AGW models over two years ago. Anyway, it's good that officially organized groups of scientists are now speaking up.

(H/T Hot Air)

Another Challenge to AGW: US National Climatic Data Center Adjusted Data Suspect

NCDC apparently messaged rural US data, 1890s - 2006, to give them rise that is not present in the raw data. Analysis at American Thinker.

Anthropogenic Global Warming Thesis Dealth Another Blow

Jeffrey A. Dorale, Bogdan P. Onac, Joan J. Fornós, Joaquin Ginés, Angel Ginés, Paola Tuccimei, David W. Peate, "Sea-Level Highstand 81,000 Years Ago in Mallorca," Science 12 February 2010 vol. 327 p. 860 ff. Perspective provided in R. Lawrence Edwards, "Ice Age Rhythms,"  Science ibid p. 790 ff.

Summary by Stella Hurtley:

"Sea-level rises and ralls as Earth's giant ice sheets shrinik and grow. It has been thought that sea level around 81,000 yeras ago--well into the last glacial period--was 15 to 20 meters below that of today and, thus, that the ice sheets were more extensive. Dorale et. al. [citation above] now challenge this view. A speleothem that has been intermittently submerged in a cave on the island of Mallorca was dated to show that, historically, sea level was more than a meter above its present height. This data implies that temperatures were as high as or higher than now, even though the concentration of CO2 in the atmosphere was much lower." [Ibid., p. 757.]

Edwards [citation above] discusses the scientific hypothesis that explains the phenomenon:

 "... [the finding] does coincide with calculated high Northern Hemisphere summer sunlight, and thus supports a simple version of the Milankovitch theory."