The current interglacial warm period, the Holocene, started ∼11,500 years ago. At its start, among the dramatic changes in climate was a notable increase in rainfall, triggered by summer insolation values higher than those of today. This caused what is called the African Humid Period in North Africa—a time when the Sahara was dotted with large and small lakes, savannah grasslands, and in some regions, humid tropical forests and shrubs. The African Humid Period ended abruptly ∼5000 ybp (years before present) in many locations, such as western North Africa and northern Kenya. In other places, such as the central Sahara and the southern Arabian Peninsula, change occurred more gradually, taking several millennia. Regardless of the pace of change, those areas are tracts of arid desert today, and the animals and humans who had previously thrived in those formerly verdant regions have either moved or had to adapt to much harsher conditions. This is but one example of nature at its most capricious—the tyranny of climate change.
The long awaited full text report is finally available. The Final Draft Report, dated 7 June 2013, of the Working Group I contribution to the IPCC Fifth Assessment Report Climate Change 2013: The Physical Science Basis was accepted but not approved in detail by the Twelfth Session of Working Group I and the Thirty-Sixth Session of the IPCC on 26 September 2013 in Stockholm, Sweden. This report consists of the full scientific and technical assessment undertaken by Working Group I. While the final draft of the underlying Working Group I report is still subject to copy-editing and corrections in proof as normally applied to scientific reports the fundamental tone and content of the report has been set. No screaming warnings; no predictions of impending doom. The most shocking thing is that our knowledge of climate change has not advanced in almost a decade. Simply put, climate scientists are puzzled by the way nature is acting.
There was a time when climate change alarmists stood confident in the approaching global warming apocalypse. Even a few years pause in the upward march of temperatures was shrugged off, the catastrophists smugly stating that it would take ten or more years without warming to throw a spanner into their disaster predictions. It has now been fifteen years without the promised meteoric rise in global temperatures predicted by the warmongering climatologists' computer models. Unsurprisingly, some of the anthropogenic global warming faithful have started to question current climate change dogma. In commentary in a journal dedicated to climate change, scientists have admitted that they've overestimated climate change for 20 years. What is more, they do not really know why their predictions have turned out so wrong.
Scientists have long suspected that the orbital cycles of our planet are responsible for the periodic climate variation that causes alternating glacial and interglacial periods. Milankovitch's theory of orbital cycles suggests that summer insolation at high northern latitudes drives the glacial cycles. Moreover, statistical analyses have demonstrated that the glacial cycles are indeed linked to eccentricity, obliquity and precession. Now, researchers have confirmed that a combination of two of the Milankovitch cycles conspire to start and stop ice ages. The 100,000-year eccentricity cycle amplifies the influence of the 23,000-year wobble of Earth's spin axis called precession. The new modeling also suggests that the great accumulation of mass by the North American ice sheet causes the abrupt end of glacial periods. CO2 is involved, but is not determinative, in the evolution of the 100,000-year glacial cycles say the scientists.
This must be the season to bash electric automobiles. Even the staid IEEE Spectrum featured an article questioning the ecological soundness of electric vehicles on its cover. But aren't electrics and hybrids supposed to be the way to a green future? Think again. Environmentalists' love affair with electric vehicles (EVs) seems to be over. “If you are thinking of buying an electric car for the sake of the environment, you may want to think longer.,” says Bill Sweet of IEEE's EnergyWise. “You’re not doing the planet as much of a favor as you might think.” Does this make all those Prius drivers officially posers? Or were they all just duped by a passing green fad, which, like all green fads, was based on faulty reasoning and the triumph of emotion over reality?
They took their best shot, an all court press trying to convince the people of the world that climate catastrophe was imminent, that humanity had irreversibly fouled its own nest with billowing clouds of greenhouse gasses. Yet the world remains. There has been climate change aplenty, just not the climate change predicted by the IPCC's perfidious minions. More and more scientists have begun to face the fact that their climate model estimates are not correct, forced by nature itself to conclude that there is something fundamentally wrong with how climate science is done. In a recent edition of a major scientific journal, a gaggle of climate scientists have issued a statement that just a few years ago would have been considered heresy: “The rate of global mean warming has been lower over the past decade than previously.” This leads them to conclude that a lower range of temperature increase at the point of doubling of the atmospheric CO2 concentration is indicated.
Often ignored in times of calamity, and eclipsed in the media by faux crises like Global Warming, humanity is facing the very real possibility of food shortages in the future. Given that the average citizen of a developed country consumes eight times their weight in food each year, this is no small problem. Not to fear, dedicated teams of scientists and technologists are on the job, trying to invent the food of the future. Many of the proposed solutions center on being able to print edible objects using 3D printing technology. This would allow raw feed stocks of protein, carbohydrate, starch, and other substances to be combined into food on demand in our homes—food tailored to individual nutritional needs with less waste than conventional preparation. Moreover, the raw material could come from unlikely sources: algae, seaweed, mealworms and insects. Will future food save the planet?
Most people have never heard of the Anthropocene era and with good reason—it is not an officially recognized geologic time period. It is the invention of a small group of scientific busy bodies who evidently have nothing better to do than try to effect a change in the official timeline of Earth's past. The International Commission on Stratigraphy, the body charged with formally designating geological time periods, has been petitioned in the past and just recently a group of chuckle-heads attending the Society for American Archaeology meetings in Hawaii have brought the idea up again. Only problem is, the proponents of the Anthropocene have fallen to arguing amongst themselves—when did the “Age of Man” really start?
The threat of widespread and persistent drought, ruining crops and threatening water supplies, is constantly cited as an outcome of global warming. Media talking heads, climate scientists (who should know better) and even the American President have all made this assertion—and there is nothing to back up the claim. Results presented recently at the annual assembly of the European Geosciences Union in Vienna show that forecasting drought is still beyond the reach of current climate models. Models run against historical data have either predicted periods of drought at the wrong times or missed them all together. Yet climate alarmists continue to spread this pernicious lie, preaching damnation with the certitude of an Old Testament prophet.
Since it was recently Earth Day, a yearly day of celebration and protest by conservationists and assorted greens, it is instructive to take a look at a number of recent studies taken from the scientific literature. The dire predictions made by climate change alarmists are many, far to numerous to all be addressed here, so this article will examine three areas of concern: increased drought, destruction of the world's rainforests, and the die-off of ocean coral reefs. Each of these reported calamities has been linked to increasing anthropogenic greenhouse gas emissions and that supposed bane of nature, anthropogenic global warming (AGW). These threats have been repeated ad nauseum by talking heads and climate change activists, but the truth is that these predicted outcomes are not as threatening as they would have you believe.
The Resilient Earth Press is proud to announce Doug L. Hoffman and Allen Simmons' seminal work, The Resilient Earth, is now available in a re-formatted version for the Kindle ebook reader. As relevant today as when it was first published in 2008, this new version contains the entirety of the text from the original paperback edition, reformatted to more effectively display on Amazon's new line of color Fire HD readers. The price has also been reduced to $7.99, a savings of 60% over the the hard copy list price. More than just a book about global warming, it is a tribute to nature and the scientists who study the Universe we live in. If you do not own a copy of this classic, now is the time to buy REP's all time best seller.
It has been vilified in the press and maligned in school classrooms by the ignorant. Opposing it has become a cause célèbre in Hollywood an a litmus test for liberal politicians. Labeled man's chosen weapon for ravaging nature and laying waste to the environment this poor, largely misunderstood gas is in fact essential to our existence. Without carbon dioxide, CO2, we would not be here and Earth would be a frozen lifeless chunk of rock. Forget that life would never have developed on a planet without greenhouse warming, a recent scientific study say the daemon gas has rescued the planet from the deep freeze at least twice during the Neoproterozoic era, roughly 750 to 635 million years ago.
Writing in a paper to appear in the journal Environmental Science & Technology, NASA scientist and noted climate alarmist James Hansen has come down on the side of nuclear power. He and coauthor Pushker A. Kharecha claim that getting power from nuclear energy actually saves lives. “Global nuclear power has prevented about 1.84 million air pollution-related deaths,” they report. Of course it also prevented 64 gigatonnes (Gt) CO2-equivalent greenhouse gas (GHG) emissions, when compared to the burning of fossil fuels, perhaps explaining why Hansen has suddenly become a nuclear power booster. With global warming on hiatus for the past decade and a half, the climate change cabal may be growing desperate for allies and have turned to that most unloved of energy sources—nuclear. Is this a sign that warmists and tree-huggers have a developing schism over nuclear power?
There was much made in the media about a new report that claims modern day temperatures are the highest in 5,000 years. Moreover, the investigators assert that this century's temperature rise is “unprecedented,” echoing the assertions of climate change alarmists over the past 30 years. Various news outlets seized upon this report as final proof that the world is headed for a hot steamy demise because of human greenhouse gas (GHG) emissions. There are, however, a number of problems with that assertion. First among them is the methodology used to generate the global temperature history and the comparison of proxy data with instrument data from recent times. This may be science but it is being used to deceive the public into believing that anthropogenic global warming (AGW) is a crisis on an unprecedented scale.
If you are a firefighter, farmer, construction worker, factory worker, or other type of laborer a new study by NOAA researchers says you will be forced to slow down due to increases in heat and humidity. Moreover, the laborers of the world have already felt the cruel grip of climate change over the past 60 years. Currently, during peak summer months, heat stress reduces labor capacity to about 90 percent of full potential. The NOAA study projects that heat-stress related labor capacity losses will double globally by 2050 with a warming climate, dropping to 80 percent in peak months. So now everyone can benefit from the global warming scam, just tell your boss your output is down due to climate change.