August 25, 2010

Southwest Drought?

Filed under: Droughts, Precipitation

As we have covered in previous essays, global warming alarmists insist that the southwestern United States is getting drier and will get substantially drier in the future due to the buildup of greenhouse gases. They bolster their claims by results from a relatively large number of articles in the professional scientific literature and countless comments in various UN IPCC reports. Throw in pictures of declining water levels at Lake Mead, some fountains in Las Vegas and golf courses in Phoenix, and just like magic, a scary scenario is produced.

As with virtually every other element of the climate change issue, the literature produces some surprises, and the drought in the Southwest claim runs up against some interesting realities. The latest article on this subject appears in a recent issue of the Journal of Geophysical Research and once again, the results are at odds with the popular perception of increased drought in the Southwest.

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August 19, 2010

The Great Russian Heat Wave of 2010 Part II

Filed under: Health Effects, Heat Waves

Last week we presented our analysis of the causes behind this summer’s record-breaking heat wave in western Russia.

We summarized the situation thus:

But global warming theory doesn’t come anywhere close to explaining why it’s so darn hot this summer in Moscow.

Long-term observations suggest a more basic cause—an unusual and unprecedented (at least since 1950) confluence of several naturally-occurring atmospheric circulation patterns that together combined to set the stage for extreme warmth. Add to that urbanization, changing forestry practices, and perhaps throw in a dash of global warming for good measure, and you take a situation that would otherwise be “very hot” and up it a notch to “record hot.”

Since then, another analysis has been released that concludes the same thing—actually, the new analysis is even less sympathetic to assigning any blame to global warming than even we were.

And surprise, surprise, the analysis wasn’t from some alleged fossil-fuels backed professional denialist group, but from the folks at the Physical Sciences Division (PSD) of the Earth System Research Laboratory (ESRL) of the National Oceanic and Atmospheric Administration (NOAA) of the Department of Commerce of the United States Government. These are folks who live and breathe atmospheric dynamics.

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August 12, 2010

The Great Russian Heat Wave of 2010

Filed under: Health Effects, Heat Waves

The longer and deadlier the heat wave in western Russia becomes, the more frequently it is being linked to anthropogenic global warming.

But global warming theory doesn’t come anywhere close to explaining why it’s so darn hot this summer in Moscow.

Long-term observations suggest a more basic cause—an unusual and unprecedented (at least since 1950) confluence of several naturally-occurring atmospheric circulation patterns that together combined to set the stage for extreme warmth. Add to that urbanization, changing forestry practices, and perhaps throw in a dash of global warming for good measure, and you take a situation that would otherwise be “very hot” and up it a notch to “record hot.”

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August 9, 2010

Sea Level History Lesson

Filed under: Sea Level Rise

We are sure you’ve heard that sea level is rising? We conducted a web search on “Global Warming and Sea Level” and nearly 3.5 million websites are immediately located. And before you conduct the search yourself, you already know what you will find. The earth is getting warmer due to the buildup of greenhouse gases, the warmer sea water expands causing sea level to rise, and most of all, you will read all about the ice melting throughout the world pouring fresh water into ocean basins causing sea level to rise far more. Alarmists insist that the worst is just around the corner, and the sea level rise will accelerate or even quickly jump to a new level given some catastrophic collapse of large sheets of ice near the fringes of the polar areas. Coastlines will be inundated, the human misery will be on a Biblical scale, ecosystems will be destroyed … this goes on for millions of websites!

But things aren’t really so simple.

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August 2, 2010

Plant Productivity on the Rise in China (and Birds Love It!)

Filed under: Adaptation, Animals, Plants

We like birds and always have a special place in our essay series for good news about their future. A recent article in Acta Oecologica deals with bird diversity in China and the news could not be better, particularly given the results from three other recent studies from China that find that find that plant productivity—a primary determinent of species richness of China’s birds—is on the rise, quite probabily a result of rising atmospheric carbon dioxide levels.

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July 29, 2010

Recent News from Antarctica

Filed under: Antarctic, Polar

We have featured Antarctica many times in our essay series, and despite a million claims that “the icecaps are melting,” we continue to find no end of articles in major journals building a case for the opposite. Here we examine some recent research, and find evidence for decreased melting and, at least local, mass gains.

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July 22, 2010

Not Warming-Up to War?

Filed under: Climate Politics

Literally thousands of websites pound home the idea that global warming is a threat to our national security and that violent conflicts will result from disruptions caused by climate change. Many of the websites point to a study released several years ago by the CNA Corporation which is a nonprofit institution that conducts in-depth, independent research on complex public interest challenges. Their study entitled “National Security and the Threat of Climate Change” was prepared with 11 retired generals and admirals, and it is widely quoted by those insisting global warming will increase the threat of war. The executive summary of the report states “Projected climate change poses a serious threat to America’s national security. The predicted effects of climate change over the coming decades include extreme weather events, drought, flooding, sea level rise, retreating glaciers, habitat shifts, and the increased spread of life-threatening diseases. These conditions have the potential to disrupt our way of life and to force changes in the way we keep ourselves safe and secure.”

The executive summary also states “Climate change acts as a threat multiplier for instability in some of the most volatile regions of the world. Projected climate change will seriously exacerbate already marginal living standards in many Asian, African, and Middle Eastern nations, causing widespread political instability and the likelihood of failed states.” And at home they claim “Projected climate change will add to tensions even in stable regions of the world. The U.S. and Europe may experience mounting pressure to accept large numbers of immigrant and refugee populations as drought increases and food production declines in Latin America and Africa.”

Before you enlist in the military or start shining up combat boots, there is a recent article in the journal Climatic Change that might change your mind about global warming and war. The research was conducted by Richard Tol and Sebastian Wagner from The Netherlands and Germany, respectively. The last sentence of their abstract caught our attention as they conclude “it appears that global warming would not lead to an increase in violent conflict” in mid-latitude locations such as China or Europe. We don’t see this study getting a lot of press coverage, so we decided to feature it on World Climate Reportjust as we did an earlier study which contradicted the global warming=more war claims.

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July 15, 2010

Solar Control on Tibet’s Climate

We see many articles like the following two that show more evidence of a solar control on climate even at the regional scale.

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July 7, 2010

Bird News

Filed under: Adaptation, Animals

We hear over and over that climate change is now so rapid that ecosystems all over the world are in peril as they attempt to cope with changes to the environment. This view of “delicate” ecosystems is at odds with the reality of the long climate history of the Earth. The climate has warmed in the past, cooled in the past, and many of these changes were quite rapid. Delicate ecosystems would have disappeared long ago and the most robust systems would have survived.

Birds are particular well-suited to move as conditions change. Somewhere deep in their DNA is a memory of changes in the past and how to cope with those changes. Four articles have appeared recently reminding us that birds are fully capable of responding to change in climate.

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June 30, 2010

China’s 2,000 Year Temperature History

We constantly hear that the warmest years on record have all occurred in the most recent decades, and of course, we are led to believe this must be a result of the ongoing buildup of greenhouse gases. In most places, we have approximately 100 years of reliable temperature records, and we wonder if the warmth of the most recent decades is unusual, part of some cyclical behavior of the climate system, or a warm-up on the heels of a cold period at the beginning of the record. A recent article in Geophysical Research Letters has an intriguing title suggesting a 2,000 year temperature record now exists for China – we definitely wanted to see these results of this one.

The article was authored by six scientists with the Chinese Academy of Sciences in Beijing, the State University of New York at Albany, and Germany’s Justus-Liebig University in Giessen; the research was funded by the Chinese Academy of Sciences, National Natural Science Foundation of China, and the United States Department of Energy. In their abstract, Ge et al. tell us “The analysis also indicates that the warming during the 10–14th centuries in some regions might be comparable in magnitude to the warming of the last few decades of the 20th century.” From the outset, we knew we would welcome the results from any long-term reconstruction of regional temperatures.

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