Originals
Medieval Warm Period in Upper North America Print E-mail
Written by Staff   
Wednesday, 16 April 2014 13:27

Climate alarmists claim that rising atmospheric CO2 concentrations due to the burning of fossil fuels, such as coal, gas and oil, have raised global air temperatures to their highest level in the past one to two millennia. And, therefore, investigating the possibility of a period of equal global warmth within the past one to two thousand years has become a high-priority enterprise; for if such a period could be shown to have existed, when the atmosphere's CO2 concentration was far less than it is today, there would be no compelling reason to attribute the warmth of our day to the CO2 released to the air by mankind since the beginning of the Industrial Revolution. Thus, in this review of the pertinent scientific literature, results of the search for such knowledge are presented for studies conducted within the borders of Canada and other regions north of the lower 48 states of the United States of America.



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Can Plants Evolve Fast Enough to Cope with Increased Drought? Print E-mail
Written by Staff   
Tuesday, 15 April 2014 22:59

Evolution is generally thought of as acting over long periods of time. So is there anything it can do to help plants cope with the rapid climate changes that the IPCC predicts will be caused by the ongoing rise in the air's CO2 content? In what follows, this question is carefully considered as it applies to the daunting environmental challenge of droughts, which climate alarmists contend will become more intense and occur more frequently throughout many parts of the world in the years and decades to come.



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Health Promoting Effects of Elevated C02 on Common Food Plants Print E-mail
Written by Staff   
Tuesday, 15 April 2014 20:49

How will the ongoing rise in the air's CO2 content alter the amounts of various health-promoting substances found in the plants that we commonly eat? Studies of the effects of atmospheric CO2 enrichment on the quality of the different plants that comprise our diets have typically lagged far behind studies designed to assess the effects of elevated CO2 on the quantity of plant production. Some noteworthy exceptions were the early studies of Barbale (1970) and Madsen (1971, 1975), who discovered that increasing the air's CO2 content produced a modest increase in the vitamin C concentration of tomatoes, while Kimball and Mitchell (1981) demonstrated that enriching the air with CO2 also stimulated the tomato plant's production of vitamin A. Then, a few years later, Tajiri (1985) found that a mere one-hour-per-day doubling of the air's CO2 concentration actually doubled the vitamin C contents of bean sprouts, and that it did so over a period of only seven days.



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Response of Corals to Ocean Acidification Print E-mail
Written by Staff   
Tuesday, 15 April 2014 20:38

It has been predicted that rates of coral calcification, as well as the photosynthetic rates of their symbiotic algae, will dramatically decline in response to what is typically referred to as an acidification of the world's oceans, as the atmosphere's CO2 concentration continues to rise in the years, decades, and centuries to come. As ever more pertinent evidence accumulates, however, the true story appears to be just the opposite.  This summary examines such evidence obtained from field-based studies conducted in the natural ocean.



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Effects of Ocean Acidification and Warming on Marine Echinoderms Print E-mail
Written by Staff   
Wednesday, 19 March 2014 20:36

Most of the ocean acidification research conducted to date has focused solely on the biological impacts of declining seawater pH. Few studies have investigated the interactive effects of ocean acidification and temperature. This summary examines what has been learned in such studies of echinoderms, highlighting several studies that challenge the alarming and negative projections of the IPCC on the matter.



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Effects of Elevated C02 on Soil Carbon Sequestration Print E-mail
Written by Staff   
Wednesday, 12 March 2014 16:11

It is important to note at the outset that atmospheric CO2 enrichment typically has but a small effect on the decomposition rates of senesced plant materials present in soils; yet this fact often leads to significantly greater soil carbon sequestration, as demonstrated by De Angelis et al. (2000), who reported a 4% reduction in the decomposition rate of leaf litter beneath stands of 30-year-old Mediterranean forest species enriched with air of 710 ppm CO2, and who thus concluded that "if this effect is coupled to an increase in primary production [which nearly always occurs in response to elevated CO2] there will be a net rise of C-storage in the soils of forest ecosystems."



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Biospheric Productivity in South America Print E-mail
Written by Staff   
Thursday, 06 March 2014 18:04

How will the terrestrial vegetation of South America respond to global warming and atmospheric CO2 enrichment? Climate alarmists suggest there will be widespread declines in both ecosystem size and productivity. But are these predictions correct? Given the fact that over the past century the Earth has experienced what alarmists refer to as unprecedented rises in both atmospheric temperature and CO2 concentration relative to the past two thousand years and several million years, respectively, plants should already be responding to the changes in these two environmental parameters. And what has that response been? In this summary we consider this question as it applies to locations in South America.



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The Interaction of C02 and Non-Ozone Air Pollutants on Plant Growth Print E-mail
Written by Staff   
Friday, 28 February 2014 18:42

We begin this review of the interaction of CO2 and non-ozone air pollutants on plant growth with the study of Deepak and Agrawal (2001)[1], who grew two cultivars of soybeans (Glycine max L. Merr. Cv. PK472 and Bragg) in open-top chambers that were maintained at atmospheric CO2 concentrations of either 350 or 600 ppm, both alone and in combination with 60 ppb SO2, in order to determine the individual and interactive effects of elevated CO2 and this common air pollutant on the growth and yield of this important crop. This work revealed that exposure to elevated SO2 significantly reduced both total plant biomass and grain yield by approximately 18% in both cultivars. In contrast, elevated CO2 significantly increased total plant biomass and grain yield in both cultivars by averages of 30 and 34%, respectively. And when the plants were exposed simultaneously to elevated SO2 and CO2, the negative effects of SO2 were completely ameliorated.



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Global Cooling Print E-mail
Written by Dr Gerrit J. van der Lingen   
Thursday, 27 February 2014 22:49

The hypothesis that human emissions of greenhouse gases, especially carbon dioxide (CO2), are causing, or will be causing, dangerous global warming, has been severely criticized on scientific grounds. The critical literature is substantial, not only peer-reviewed scientific papers, but also several substantial scientific books (to mention just a few: Idso and Singer, 2009; Idso, Carter and Singer, 2013a; Carter, 2010; Plimer, 2009).



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Rising Atmospheric C02 and Soil Erosion Print E-mail
Written by Staff   
Friday, 21 February 2014 00:26

Almost from the beginning of scientific interest in the subject, study after study had concluded that soil erosion by both wind and water was a major environmental problem. In fact, in an article published in Science a decade and a half ago, Trimble and Crosson (2000)[1] noted that "some sources have suggested that recent erosion is as great as or greater than that of the 1930s," just as some sources were suggesting that global temperatures were greater at that time than they were in the 1930s (Crowley, 2000; Mann 2000).

The remarkable feature of this long-held belief in continued high, or even increasing, soil erosion, in the words of Trimble and Crosson, was that "it was based mostly on models," just as the global warming scare was (and still is!) based mostly on models.



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