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The global extent and distribution of forest trees is central to our understanding of the terrestrial biosphere. We provide the first spatially continuous map of forest tree density at a global scale. This map reveals that the global number of trees is approximately 3.04 trillion, an order of magnitude higher than the previous estimate. Of these trees, approximately 1.39 trillion exist in tropical and subtropical forests, with 0.74 trillion in boreal regions and 0.61 trillion in temperate regions. Biome-level trends in tree density demonstrate the importance of climate and topography in controlling local tree densities at finer scales, as well...

It seems that scientists were a little off in calculating the number of trees on the planet. You remember trees: they turn CO2 into oxygen and water. In fact, if you buy a “carbon credit,” you are paying to plant trees to buy an indulgence for your private jet travel -- just like Al Gore and Robert F. Kennedy Jr. supposedly do. Well, all those calculations of doom over purported CO2-caused global warming may be a little more unsettled. The Wall Street Journal reports:

There are just over three trillion trees in the world, a figure that dwarfs previous estimates, according to the most comprehensive census yet of global forestation. Using satellite imagery as well as ground-based measurements from around the world, a team led by researchers at Yale University created the first globally comprehensive map of tree density. Their findings were published in the journal Nature on Wednesday. A previous study that drew on satellite imagery estimated that the total number of trees was around 400 billion. The new estimate of 3.04 trillion is multiple times that number, bringing the ratio of trees...

The global map of tree density at the square-kilometer pixel scale. Credit: Crowther, et al A new Yale-led study estimates that there are more than 3 trillion trees on Earth, about seven and a half times more than some previous estimates. But the total number of trees has plummeted by roughly 46 percent since the start of human civilization, the study estimates. Using a combination of satellite imagery, forest inventories, and supercomputer technologies, the international team of researchers was able to map tree populations worldwide at the square-kilometer level. Their results, published in the journal Nature, provide the most comprehensive...

Every so often you will see articles warning that some species is going extinct. And usually it's not really a species -- you never hear about "leopards" going extinct, usually it's "purple dotted left handed bisexual Nepalese leopards" or some subvariety.  We are assured they are going extinct because fewer have been seen recently. But the Earth is so big, how can we really be sure that some subspecies is going extinct just because we see fewer of them? After all, only three percent of the land mass of the Earth is urbanized. Animals could easily be hidden in...

Predation by another species is the number one cause of extinction Willis Eschenbach, who takes pride in saying that he is not a trained scientist but has logged thousands of hours of research on the subject, was the first person to file a FOIA request for the infamous data from the University of East Anglia CRU. Hackers downloaded emails from said university that had shown that scientists had manipulated the data to agree with the global warming theory. Eschenbach lectured an audience in California about the “Myth of Species Extinction,” more specifically, the legend that humans have caused the disappearance...

A new phenomenon is sweeping across Sparta as more and more students come forward claiming to have encountered the flightless Dodo bird. Caught somewhere between a pigeon and a dove with its gray feathers and unmistakable yellow scowl, the Dodo bird stood at an intimidating one meter tall back in the 17th century when it became extinct--barely a century after its discovery. The Dodo bird was not known for its impact on this planet while it lived, but, rather, remains a point of contention and activism because of its death. The extinction of this bird has been overwhelmingly attributed to...

The planet is dying. Or at least the animals on it are. That’s the conclusion of “a team of scientist” as reported in the San Francisco Gate. This is some dire news to be sure. With all the animals gone, we’re going to be in a lot of trouble, and it’s really all your fault. Mammals, birds and reptiles are disappearing from the planet so rapidly that a team of scientists concluded Friday that Earth is in the midst of a sixth mass extinction, one so dire that it could threaten the existence of humanity.The scientific study, published Friday...

The clock has run out on the climate change debate. It's time for predictions to give way to radical action.For most of my career, I've been a trend spotter, sometimes referred to as a futurist. I've divined trends for companies seeking to innovate; anticipated consumer appetites; and kept pioneering brands ahead of the pack. My work has been a passion, a calling, never just a job. So, it was fundamentally disorienting when I realized recently, I'd lost my feeling for the future.Gradually, over a period of I don't know how long -- months? -- my usually strong connection with intuition...

Nine hundred kilometers off the east coast of Madagascar lies the tiny island paradise of Mauritius. The waters are pristine, the beaches bright white, and the average temperature hovers between 22°C and 28°C (72°F to 82°F) year-round. But conditions there may not have always been so idyllic. A new study suggests that about 4000 years ago, a prolonged drought on the island left many of the native species, such as dodo birds and giant tortoises, dead in a soup of poisonous algae and their own feces. The die-off happened in an area known as Mare aux Songes, which once held...

Earth has seen its share of catastrophes, the worst being the “big five” mass extinctions scientists traditionally talk about. Now, paleontologists are arguing that a sixth extinction, 260 million years ago, at the end of a geological age called the Capitanian, deserves to be a member of the exclusive club. In a new study, they offer evidence for a massive die-off in shallow, cool waters in what is now Norway. That finding, combined with previous evidence of extinctions in tropical waters, means that the Capitanian was a global catastrophe. “It’s the first time we can say this is a true...

A definitive geological timeline shows that a series of massive volcanic explosions 66 million years ago spewed enormous amounts of climate-altering gases into the atmosphere immediately before and during the extinction event that claimed Earth's non-avian dinosaurs, according to new research from Princeton University. A primeval volcanic range in western India known as the Deccan Traps, which were once three times larger than France, began its main phase of eruptions roughly 250,000 years before the Cretaceous-Paleogene, or K-Pg, extinction event, the researchers report in the journal Science. For the next 750,000 years, the volcanoes unleashed more than 1.1 million cubic...

Want to buy an American car? Better get one while they last. Only 10 vehicles qualified this year for the annual American-Made Index from Cars.com, and just three of them are from domestic brands. The Ford F-150 pickup took the top spot for the second year in a row, while the Chevrolet Corvette Stingray came in seventh and the Detroit-built Dodge SRT Viper rounded out the list in tenth. …

"A new study led by Jens-Christian Svenning of Aarhus University has strongly suggested that humans are squarely responsible for the disappearance of megafauna during the last 100,000 years. The results have been published in the Proceedings of the Royal Society B."

Controversy over what sparked the Younger Dryas, a brief return to near glacial conditions at the end of the Ice Age, includes a theory that it was caused by a comet hitting the Earth. As proof, proponents point to sediments containing deposits they believe could result only from a cosmic impact. Now a new study disproves that theory, said archaeologist David Meltzer, Southern Methodist University, Dallas. Meltzer is lead author on the study and an expert in the Clovis culture, the peoples who lived in North America at the end of the Ice Age. Meltzer's research team found that nearly...

Bringing extinct animals back to life is really happening — and it’s going to be very, very cool. Unless it ends up being very, very bad. The first time Ben Novak saw a passenger pigeon, he fell to his knees and remained in that position, speechless, for 20 minutes. He was 16. At 13, Novak vowed to devote his life to resurrecting extinct animals. At 14, he saw a photograph of a passenger pigeon in an Audubon Society book and “fell in love.” But he didn’t know that the Science Museum of Minnesota, which he was then visiting with a...

Submitted by Michael Snyder of The Economic Collapse blog, The death of the middle class in America has become so painfully obvious that now even the New York Times is doing stories about it. Millions of middle class jobs have disappeared, incomes are steadily decreasing, the rate of homeownership has declined for eight years in a row and U.S. consumers have accumulated record-setting levels of debt. Being independent is at the heart of what it means to be "middle class", and unfortunately the percentage of Americans that are able to take care of themselves without government assistance continues to decline....

It's well known that the dinosaurs were wiped out 66 million years ago when a meteor hit what is now southern Mexico but evidence is accumulating that the biggest extinction of all, 252.3m years ago, at the end of the Permian period, was also triggered by an impact that changed the climate. While the idea that an impact caused the Permian extinction has been around for a while, what's been missing is a suitable crater to confirm it. Associate Professor Eric Tohver of the University of Western Australia's School of Earth and Environment believes he has found the impact crater...

(CNN) -- At the start of the 1980s there were more than a million elephants in Africa. During that decade, 600,000 were destroyed for ivory products. Today perhaps no more than 400,000 remain across the continent, according to Samuel Wasser of the University of Washington, who is widely recognized as an authority on the subject. If this level of killing continues, if elephants continue to be slaughtered for trinkets and statuettes, in 10 years' time most of Africa's elephants will be gone and an ineffable symbol of majesty and wonder -- and the linchpin in the ecology of an entire...

This week the U.S. Supreme Court will hear oral arguments on two of the most critical cases of our time. On Tuesday, March 26, attorneys will make the pitch both for and against California’s Proposition 8. This, of course, is the Golden State’s pro-marriage amendment. It maintained the timeless definition of natural marriage as between man and wife. Then, on Wednesday, March 27, the high court will consider the constitutionality of the Defense of Marriage Act (DOMA), passed in 1996 with overwhelming bipartisan support and signed into law by then President Bill Clinton. It, likewise, secured the definition of legitimate...