Natural and Anthropogenic Perturbations in Cloud Albedo Print E-mail
Written by Staff   
Thursday, 14 November 2013 22:20

Understanding how clouds respond to anthropogenic-induced perturbations of our planet's atmosphere is of paramount importance in determining the impact of the ongoing rise in the air's CO2 content on global climate; for as Charlson et al. (2001) have noted, "man-made aerosols have a strong influence on cloud albedo, with a global mean forcing estimated to be of the same order (but opposite in sign) as that of greenhouse gases." Thus, this summary presents a brief review of a number of scientific papers that address this crucial issue.



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Plant Productivity: Growth Response to C02 When Coupled with Ozone Print E-mail
Written by Staff   
Wednesday, 06 November 2013 19:12

Ozone (O3) is the primary air pollutant responsible for visible foliar injury and reduced growth in trees the world over. Most studies of the subject suggest it gains entrance to leaves through their stomata, whereupon it interferes with the process of photosynthesis and thereby reduces plant productivity. The global significance of the phenomenon was described in some detail by Fowler et al. (1999), who estimated O3 to have been negatively impacting a full quarter of earth's forests at the close of the 20th century, and who calculated it to have the potential to negatively impact fully one-half of the planet's forests by 2100.



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Correlation Does Not Equal Causation and Causes Do Not Equal Effects Print E-mail
Written by Lee Gerhard   
Tuesday, 05 November 2013 18:22

Correlation is the easiest method to assign causation for an event, even though it is the least valid method. Take an automobile race, for instance. The last four races were won by blue cars. Blue cars win races. That is an example of correlation driving causation. In reality, Vettel was driving the blue car. He just won the Grand Prix championship for 2013. The color of the car had nothing to do with winning the races. There are frequent correlations that do not identify the causes of events, but politics and media jump on the simplest correlations because they do not require extensive research nor complex analysis.



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Historical Temperature Trends in Antarctica Print E-mail
Written by Staff   
Wednesday, 30 October 2013 11:15

From the birth and death of ice ages to the decadal meanderings of modern-day weather patterns, studies of Antarctica bear witness to the fact that the atmosphere's CO2 concentration is not a major player in bringing about significant changes in earth's climate; and in what follows, the case for this proposition is presented in the form of brief reviews of pertinent studies directed, first of all, at glacial periods, then the singular Holocene, and finally the past few decades.



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Medieval Warm Period and the World's Oceans Print E-mail
Written by Staff   
Tuesday, 29 October 2013 11:17

Keigwin (1996) introduced his classic paleoclimatic study of the northern Sargasso Sea by stating that "it is important to document natural climate variability in order to understand the effects of anthropogenic forcing." And, therefore, working with two subcores of a sediment box core retrieved from 33°41.6'N, 57°36.7'W of the undulating plateau of the northeast Bermuda Rise, he measured the oxygen isotope ratios (?18O) of the white variety of the planktonic foraminifera Globigerinoides ruber, which lives year-round in the upper 25 meters of the northern Sargasso Sea and has a relatively constant annual mass flux and shell flux to the sediments. Calibrating these data against temperature and salinity data obtained at Ocean Station "S" (32°N, 62°30'W) over the prior 42 years, he first determined that "temperature accounts for about two-thirds of the isotopic signal, whereas salinity accounts for one-third." And based on these results, he calculated sea surface temperatures (SSTs) of the prior three millennia, after which he "stacked the temperature proxy data from the two subcores by averaging results in 50-year bins," obtaining the results below.



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The Positive Externalities of Carbon Dioxide Print E-mail
Written by Craig D. Idso, Ph. D.   
Monday, 21 October 2013 00:00

Advancements in technology and scientific expertise that accompanied the Industrial Revolution initiated a great transformation within the global enterprise of agriculture. More efficient machinery and improved plant cultivars, for example, paved the way toward higher crop yields and increased global food production. And with the ever-burgeoning population of the planet, the increase in food production was a welcomed societal benefit. But what remained largely unknown to society at that time, was the birth of an ancillary aid to agriculture that would confer great benefits upon future inhabitants of the globe in the decades and centuries to come. The source of that aid: atmospheric carbon dioxide (CO2).



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Greening of the Earth in Europe Print E-mail
Written by Staff   
Wednesday, 16 October 2013 00:00

Among the many climate-alarmist fears of CO2-induced global warming is the concern that the productivity of the biosphere will decline if global temperatures rise to the extent predicted by computer models. Because of such concern, several researchers have investigated the relationship between temperature, atmospheric CO2, and biospheric productivity across a range of spatial and temporal scales. In this review we examine what has been learned about the subject for locations in Europe.



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Medieval Warm Period in Other Asian Countries (Not including China, Russian or Japan) Print E-mail
Written by Staff   
Wednesday, 09 October 2013 10:39

Climate alarmists have long contended that the Medieval Warm Period (MWP) was not a worldwide phenomenon, primarily because that reality would challenge another of their major claims, i.e., that late 20th-century temperatures were the warmest of the past millennium or more. Thus, it is important to know what has been learned about this subject in different parts of the world; and in this summary attention is focused on Asian countries other than China, Russia and Japan, which are treated individually in other MWP Summaries.



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The Real Climate Print E-mail
Written by Vincent Gray   
Wednesday, 25 September 2013 07:15

The Climate is a heat engine. Energy input is mainly short wave radiation from the sun. Energy output is mainly long wave radiation from every surface on the earth and from every level in the atmosphere, including clouds and aerosols.



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Medieval Warm Period in Australia & New Zealand Print E-mail
Written by Staff   
Wednesday, 25 September 2013 07:11

Climate alarmists have claimed for quite some time that late-20th-century and early-21st-century global temperatures were so high as to merit the word "unprecedented" when comparing them to temperatures of the past millennium or two; and they also claim that this achievement was both driven and sustained by the carbon dioxide or CO2 released to the air by mankind's burning of fossil fuels such as coal, gas and oil. But to maintain this dual contention, they have been forced to further contend that the well-known Medieval Warm Period was neither hemispheric nor global in scope, but merely confined to the much smaller region surrounding the North Atlantic Ocean. And they have also had to contend that the MWP was never really as warm as it had long been believed to be.



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Drought Trends Across Canada Print E-mail
Written by Staff   
Wednesday, 25 September 2013 07:07

Knowledge of the past is extremely important when it comes to contemplating future climatic possibilities; for what's happened before can clearly happen again. Hence, this summary briefly reviews the history of Canadian droughts with respect to how they varied over the past several centuries in response to significant changes in global air temperature but very little change in the atmosphere's CO2 concentration, which exercise provides some idea of how Canadian droughts might possibly vary in the post-Little Ice Age world that is known as the Current Warm Period.



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Biospheric Productivity in High Latitude Regions of North America Print E-mail
Written by Staff   
Thursday, 19 September 2013 19:16

How does the terrestrial vegetation of Earth's natural ecosystems respond to increases in atmospheric temperature and CO2 concentration? We here consider this question as it applies to Arctic and near-Arctic locations in North America.



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Frauds, Serious Frauds and IPCC Assessment Reports Print E-mail
Written by Christopher Monckton of Brenchley   
Wednesday, 18 September 2013 19:39

In the 19th century, British Prime Ministers used to say there were “lies, damned lies, and statistics”. In the 21st century, we may say there are frauds, serious frauds, and IPCC Assessment Reports. Recall, for instance, the notorious graph in the Fourth Assessment Report that falsely indicated that the rate of global warming is accelerating and we are to blame. Using the same statistical dodge, one can show that a sine-wave has a rising trend.



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But What Do We Mean by Consensus? Print E-mail
Written by Christopher Monckton of Brenchley   
Tuesday, 17 September 2013 19:47

The celebrated mathematician, astronomer and philosopher of science Abu Ali Ibn al-Haytham, or Alhazen, is justly celebrated as the founder of the scientific method. His image appears on Iraqi banknotes and on the postage stamps of half a dozen nations of the ummah wahida. Al-Haytham, unlike Naomi Oreskes, did not consider that consensus had any role in science.



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Medieval Warm Period in South America Print E-mail
Written by Staff   
Wednesday, 04 September 2013 18:30

Was there a Medieval Warm Period anywhere in addition to the area surrounding the North Atlantic Ocean, where its occurrence is uncontested? This question is of utmost importance to the ongoing global warming debate, since if there was, and if the locations where it occurred were as warm then as they are currently, there is no need to consider the temperature increase of the past century as anything other than the natural progression of the persistent millennial-scale oscillation of climate that regularly brings the earth several-hundred-year periods of modestly higher and lower temperatures that are totally independent of variations in atmospheric CO2 concentration. Hence, this question is here considered as it applies to South America, a region far removed from where the existence of the Medieval Warm Period was first recognized.



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Response to the Scare-Mongering of the Financial Times Print E-mail
Written by Christopher Monckton   
Tuesday, 03 September 2013 19:31

A recent article in the Financial Times reproduced on the internet recently by CNBC (http://www.cnbc.com/id/100912062), is predicated on the assumption that there has been a “record decline in Arctic sea ice”. However, the data on sea-ice extent only go back to 1979. And they show the Arctic sea ice declining but Antarctic sea ice increasing, so that the global decline in sea-ice extent is not very great.



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The Future of Biospheric Productivity Print E-mail
Written by Staff   
Wednesday, 28 August 2013 16:05

We begin our investigation into this subject with the words of Matthews et al. (2005)1, who wrote that "coupled climate-carbon cycle model simulations have identified an important positive feedback between the terrestrial carbon cycle and climate, whereby future carbon uptake declines under anthropogenic climate warming." Such is the conclusion of those who see a bleak future in store for terrestrial biospheric productivity. But is this truly the case?



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Medieval Warm Period in the Artic Print E-mail
Written by Staff   
Wednesday, 28 August 2013 16:02

This review begins with the study of Dahl-Jensen et al. (1998)1, who used temperature measurements from two Greenland Ice Sheet boreholes to reconstruct the temperature history of this portion of the earth over the past 50,000 years. Their data indicated that after the termination of the glacial period, temperatures steadily rose to a maximum of 2.5°C warmer than at present during the Holocene Climatic Optimum (4,000 to 7,000 years ago). The Medieval Warm Period (MWP) and Little Ice Age (LIA) were also observed in the record, with temperatures 1°C warmer and 0.5-0.7°C cooler than at the time of their writing, respectively. After the Little Ice Age, they report that temperatures once again rose, but that they had "decreased during the last decades," thereby indicating that the MWP in this part of the Arctic was significantly warmer than it was just before the turn of the century.



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Historical Temperature Trends in China Print E-mail
Written by Staff   
Wednesday, 28 August 2013 15:42

Controversy abounds over the temperature history of the earth, particularly that of the past one to two millennia. The original debate was sparked by the papers of Mann et al. (1998, 1999), which challenged the long-accepted view that there was nothing unusual about earth's climatic history subsequent to the inception of the Industrial Revolution; and it prompted the Intergovernmental Panel on Climate Change (IPCC) to disavow their original representation of the temperature history of the Holocene (Houghton et al., 1990), where several periods of time prior to the inception of the Industrial Revolution were depicted as having experienced temperatures that were higher than those of the latter part of the 20th century.



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Polar Bears Have Not Been Harmed by Sea Ice Declines in Summer - The Evidence Print E-mail
Written by Dr. Susan J. Crockford   
Thursday, 22 August 2013 12:39

The polar bear biologists and professional activists of the IUCN Polar Bear Specialist Group (PBSG) continue to insist that since 1979 increasingly smaller amounts of Arctic sea ice left at the end of summer (the September ice minimum) have already caused harm to polar bears. They contend that global warming due to CO2 from fossil fuels (“climate warming” in their lexicon) is the cause of this decline in summer ice.



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