Climate alarmists are constantly warning that Earth is going to warm up, driven they say by the level of CO2 in the atmosphere. To bolster their claims they point to the Pliocene, a time 4-5 million years ago, when the planet was 4-8°C hotter and CO2 levels were 400ppm or higher. This is the climate we are heading for, the global warming supporters say—but it that really true? Superficially it seems a plausible assertion, but as it turns out there is much more here than CO2 and temperature. It is not just the average temperature but the distribution of temperature at different latitudes, both over land and sea, that controls the climate. It is the temperature gradient that drives storms and affects weather patterns and it was much different during the Pliocene. Moreover, climate models do not generate a Pliocene like climate when run with higher CO2 levels, which means climate scientists are missing something important about the way Earth's climate system works.
A 17-meter-wide asteroid that no one saw coming exploded in February near Chelyabinsk, Russia, blazing across the sky and television screens world wide. Efforts have been made to identify asteroids larger than a kilometer—objects large enough to threaten life on Earth. Hollywood has cranked out dozens of cheesy asteroid collision movies, some bad and others worse, but none capture the magnitude of the actual threat from near Earth objects (NEOs). There may be a million asteroids with masses greater than ocean liners in Earth-approaching orbits, nearly all of which remain undiscovered and their courses uncharted. Now, a private foundation wants to build Sentinel, a satellite containing an infrared telescope that would be able to detect a half-million orbiting objects from a vantage point near Venus. Is this a project too important to trust to government agencies like NASA and the ESA?
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.
Science is supposed to be unbiased, seeking to understand the workings of nature untainted by the personal beliefs or prejudices of its practitioners. Nature alone is the arbiter of truth—when science and nature disagree it is science that is wrong. But science is practiced by human beings, who cannot keep their beliefs, whether engendered by religious, philosophical, or political leanings, from skewing any result that is equivocal or highly complex. Presented here are two examples taken from the pages of Nature, perhaps the world's primer scientific journal. One is a rehash of temperature history in northern latitudes with a new statistical twist, the other a report on a study regarding fracking. One shows how what scientists leave out of their studies may be more important than what they put in. The other shows how a headline can spin the results of a report even when its authors are carefully neutral in their conclusions.
Scientists who study climate will tell you that today's warm temperatures and mild conditions are not normal for Earth during the past several million years. Our planet has been in a general cooling trend for 35 million years and in the grip of an Ice Age for the last 1.6 million years. What's more, this Ice Age, known as the Pleistocene, consists of relatively short periods of warmth, called interglacials, separated by much longer periods of bitter cold, referred to as glacials. The recorded history of humankind covers only the later half of the most recent interglacial warming, though our ancient ancestors did leave messages in the form of cave art that date back to much colder times, times when the Ice Age held the world fast in its frozen embrace. Predicting the timing and duration of these periods remains a problem for scientists. Why the glacial periods should last around 100,000 years, as they have for the last million years or so, is called the 100-kyr problem. Now, a group of researchers claim they know the answer.
Sometimes scientists show their whimsical side by applying the tools of their profession to things outside the realm of science. Such was the case when a team of graduate students at the Department of Physics and Astronomy at Johns Hopkins University, decided to look into the oddly inconsistent seasons on the planet Westeros, the world invented by George R. R. Martin in A Game of Thrones. The group recently published a paper in which they explore the possible cause of summers lasting for years and winters for a generation. Using a numerical three-body computer simulation the intrepid researchers reach the conclusion that such a world is possible in the non-mythical universe.
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?
Gas prices, oil sands, fracking and the Canadian pipeline have all thrust energy back into the headlines. Politicians posture, eco-alarmists protest and those global warming fanatics continue to predict the end of the world as we know it. If you are tired of the hype and disinformation, if you really want to understand energy—where it comes from, how it works and how much of it the world has—then you need a copy of The Energy Gap. In this follow-on to The Resilient Earth, Hoffman and Simmons address the world's energy questions with the same wit and erudition displayed in their previous work. Even better, in honor of April 15th, tax day in the US, you can now download a copy of The Energy Gap for free from Amazon.
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.
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.
NASA says that something unexpected is happening on the Sun. This year, 2013, is supposed to be the peak of the 11-year sunspot cycle—the year of Solar Max. Yet solar activity is well below the expected level. Out somnolent star refuses to behave according to the predictions of Sun watching scientists, leading some observers to wonder if forecasters missed the mark. The botched solar forecast not only has implication for our understanding of the physical processes inside the Sun, it has possible links to future climate change here on Earth. Scientists admit that no one knows for sure what the Sun will do next.
It's everywhere on Earth, on the other planets and moons of the solar system, and even in comets from deep space. It is the frozen form of water, commonly called ice. Something so ubiquitous and familiar, one would think that science knows a lot about ice. It turns out science knows less than we might suppose. In a commentary in the journal Nature, an ice scientist raises ten open questions about ice. For example, the article states: “We cannot predict with certainty when and where ice clouds will form in the atmosphere; areas of the sky remain humid when we would expect them to freeze.” Ice is a fundamental part of Earth's climate, yet these questions and others remain unanswered. How can climate science claim to predict the fate of the polar ice sheets or mountain glaciers when we do not really understand the substance that they are made of?
Climate change alarmists point to the past several decades of European weather to reinforce their claim that global warming has the continent in its grip. A new report shows that this recent warm spell is nothing abnormal or unprecedented—during the 1990s there was simply a return to conditions present during 1931-1960. The reason for the shift is warm ocean temperatures that are, in turn driven by variation in warm ocean currents from the tropics. The instrumental record shows that, relative to the average temperature of the rest of the world’s oceans, the temperature of the North Atlantic Ocean has fluctuated between anomalously warm and anomalously cool phases, each lasting several decades at a time. Palaeoclimate records suggest that similar variations extend much farther back in time. The observed pattern of multidecadal variation in North Atlantic sea surface temperatures (SSTs) has become known as the Atlantic Multidecadal Oscillation (AMO).
Once again the fear-mongering hoards of lay-climatologists are denouncing the importance of the Medieval Warm Period (MWP), or Medieval Climate Optimum as some refer to it. On the strength of a single new study, involving algal lipids from a lake in Svalbard, Norway, one pundit referred to the “so-called” Medieval Warm Period and impugned the significance of the Little Ice Age for good measure. Of course the writer, an “ecological journalist,” saw nothing wrong with using such a dismissive and pejorative term since it is IPCC promoted doctrine that today things are warmer than they have ever been since the onset of the Holocene. Yet literally hundreds of other studies have shown that the MWP was as warm or warmer than today and that is the real consensus among paleoclimatologists.