Keyword: deforestation

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  • Mapping tree density at a global scale

    09/03/2015 10:33:23 AM PDT · by Citizen Zed · 10 replies ^ | 9-2-2015
    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...
  • Scientists undercount trees by 2.6 trillion, but assure us animals going extinct

    09/03/2015 6:50:18 AM PDT · by SeekAndFind · 24 replies
    American Thinker ^ | 09/03/2015 | NewsMachete
    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...
  • 'Settled Science' chronicle: world has 7.5 times more trees than previously believed

    09/03/2015 6:09:42 AM PDT · by rktman · 16 replies ^ | 9/3/2015 | Thomas Lifson
    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:
  • World Has Many More Trees Than Previously Thought, New Report Says

    09/02/2015 11:23:33 AM PDT · by BenLurkin · 32 replies
    WSJ ^ | Mark Armao
    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...
  • Three trillion trees: Study finds there are 7.5 times more trees than previously believed

    09/02/2015 10:56:17 AM PDT · by Red Badger · 115 replies ^ | September 2, 2015 | Provided by: Yale University
    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...
  • Can vegans stomach the unpalatable truth about quinoa?

    01/17/2013 12:38:00 AM PST · by Cronos · 55 replies
    The Guardian ^ | 16 Jan 2013 | Joanna Blytheman
    Not long ago, quinoa was just an obscure Peruvian grain you could only buy in wholefood shops. We struggled to pronounce it (it's keen-wa, not qui-no-a), yet it was feted by food lovers as a novel addition to the familiar ranks of couscous and rice. Dieticians clucked over quinoa approvingly because it ticked the low-fat box and fitted in with government healthy eating advice to "base your meals on starchy foods". Adventurous eaters liked its slightly bitter taste and the little white curls that formed around the grains. Vegans embraced quinoa as a credibly nutritious substitute for meat. Unusual among...
  • From Ancient Deforestation, a Delta Is Born

    09/17/2012 11:43:59 AM PDT · by Renfield · 8 replies
    Green Blog -- N.Y. Times ^ | 9-14-2012 | RACHEL NUWER
    Humans were tampering with nature long before the Industrial Revolution’s steam and internal combustion engines arrived on the scene. The invention of agriculture around 8,000 years ago, some argue, significantly changed ecosystems as it spread around the globe. Although scientists are only just beginning to understand how these ancient alterations shaped our world today, a new study in Scientific Reports suggests that millennium-old development along the Danube River in Eastern Europe significantly changed the Black Sea ecosystem and helped create the lush Danube Delta in Romania and Ukraine. “My team had a big surprise,” said Liviu Giosan, a geologist at...
  • Columbus blamed for Little Ice Age

    10/13/2011 2:17:57 PM PDT · by afraidfortherepublic · 118 replies
    ScienceNews ^ | 10-22-11 | Devin Powell
    Depopulation of Americas may have cooled climate MINNEAPOLIS — By sailing to the New World, Christopher Columbus and the other explorers who followed may have set off a chain of events that cooled Europe’s climate for centuries. The European conquest of the Americas decimated the people living there, leaving large areas of cleared land untended. Trees that filled in this territory pulled billions of tons of carbon dioxide from the atmosphere, diminishing the heat-trapping capacity of the atmosphere and cooling climate, says Richard Nevle, a geochemist at Stanford University. “We have a massive reforestation event that’s sequestering carbon … coincident...
  • Barbie Protest Success For Greenpeace Activists

    06/13/2011 9:41:08 AM PDT · by smokingfrog · 30 replies
    Long Island Press ^ | 13 June 2011 | Erika Domnitz
    Dear Barbie, it’s over, from Ken. Last Tuesday, the Greenpeace environmentalist organization staged a protest outside of Mattel Inc.’s head office in El Segundo, California near Los Angeles. Activists hung a giant poster with a picture of a sad Ken doll with the message: “Barbie, it’s over. I don’t date girls that are into deforestation.” Although the California protest was expected to be much more powerful and theatrical, it did elscalate enough for firefighters to arrive and police officers to make 10 arrests. One of the people arrested was a woman by the name of Elise Nabors, who was dressed...
  • The Little REDD book

    11/13/2010 12:46:32 PM PST · by wewillnotcomply · 9 replies ^ | 11/13/10 | Sam
    When most people hear the Little Red Book they think of communist book Quotations from Chairman Mao, required reading in China during the cultural revolution. It looked like this: Considering this book has many negative events associated with it (police reportedly beat any citizen found not carrying it) it is surprising that an environmental group would choose to embrace this theme for a publication dedicated to preventing deforestation. In December 2008, the Global Canopy Programme released a book called The Little REDD Book, intended as a guide to UN negotiations on Reducing Emissions from Deforestation and Degradation (REDD). Here is...
  • Evidence of Ancient Amazon Civilization Uncovered

    01/09/2010 5:52:40 PM PST · by fishhound · 30 replies · 2,095+ views
    The Sphere/AOL ^ | 1/09/2010 | David Knowles
    (Jan. 8) – As a result of the deforestation of the Amazon basin, a startling discovery has been made. Hidden from view for centuries, the vast archaeological remains of an unknown, ancient civilization have been found. A study published in Antiquity, a British archaeological journal, details how satellite imagery was used to discern the footprint of the buildings and roads of a settlement, located in what is now Brazil and believed to span a region of more than 150 miles across. "The combination of land cleared of its rain forest for grazing and satellite survey have revealed a sophisticated pre-Columbian...
  • A Global Catastrophic Event Wiped Out Ancient Forests

    11/22/2009 8:10:55 AM PST · by GodGunsGuts · 129 replies · 2,942+ views
    ICR News ^ | November 7, 2009 | Brian Thomas, M.S.
    Fungi are single or multi-celled organisms that break down organic materials, such as rotting wood, in order to absorb their nutrients. Neither plant nor animal, they range from mushrooms to single-celled yeast. Scientists were investigating organic chemicals trapped in an Italian sedimentary rock formation when they found evidence that an extinct fungus feasted on dead wood during a time when the world’s forests had been catastrophically eradicated.[1] What could have caused such a universal effect on forests, and why does organic material remain in rocks that are supposedly 251.4 million years old?...
  • Climate Change: Fixing a Critical Climate Accounting Error

    10/31/2009 8:28:00 PM PDT · by StopGlobalWhining · 10 replies · 710+ views
    Science ^ | October 23, 2009 | Timothy D. Searchinger, et al
    CO2 Accounting Error in US House Cap and Trade Bill Creates Perverse Incentives to Clear Forests Several recent studies estimate that this error, applied globally, would create strong incentives to clear land as carbon caps tighten. One study estimated that a global CO2 target of 450 ppm under this accounting would cause bioenergy crops to expand to displace virtually all the world's natural forests and savannahs by 2065, releasing up to 37 gigatons (Gt) of CO2 per year (comparable to total human CO2 emissions today). Another study predicts that, based solely on economic considerations, bioenergy could displace 59% of the...
  • Cultivation changed monsoon in Asia

    06/02/2009 10:57:21 PM PDT · by neverdem · 9 replies · 518+ views
    Science News ^ | June 1st, 2009 | Sid Perkins
    Loss of forests in India, China during the 1700s led to a decline in monsoon precipitation The dramatic expansion of agriculture in India and southeastern China during the 18th century — a sprawl that took place at the expense of forests — triggered a substantial drop in precipitation in those regions, a new study suggests. Winds that blow northeast from the Indian Ocean into southern Asia each summer bring abundant rain to an area that’s home to more than half the world’s population. But those seasonal winds, known as monsoons, brought about 20 percent less rainfall each year to India...
  • Deforestation effects depend on location

    04/14/2007 12:34:24 PM PDT · by NormsRevenge · 23 replies · 446+ views
    AP on Yahoo ^ | 4/9/07 | Randolph E. Schmid - ap
    WASHINGTON - The effect of deforestation on climate depends on three things — location, location and location. Environmentalists concerned about global warming have long encouraged preservation of forests because they absorb carbon dioxide, the most abundant greenhouse gas in the atmosphere. But the issue, like most things, may be more complicated than it first appears. New research in this week's online edition of Proceedings of the National Academy of Sciences, confirms the effectiveness of tropical forests at reducing warming by absorbing carbon. But it suggests that in snowy latitudes, forests may actually increase local warming by absorbing solar energy that...
  • Brazil Says Amazon Destruction Declining ('But-monkey')

    09/13/2006 9:14:55 PM PDT · by DaveLoneRanger · 6 replies · 300+ views
    ABC News ^ | September 5, 2006 | Staff
    RIO DE JANEIRO, Brazil - The rate of destruction of the Amazon rain forest is slowing, although ranchers, loggers and soybean farmers are illegally removing thousands of square miles of trees each year, the Brazilian government said Tuesday. The rain forest, as big as Western Europe, lost 6,450 square miles between 2005 and 2006, a decrease of 11 percent from the year before, the environment ministry said citing preliminary figures. "We are now, once again, seeing a declining trend," Environment Minister Marina Silva told reporters in Brasilia, adding: "We have to combat illegal deforestation." Silva credited increased law enforcement and...
  • Brazilian environmentalist dies in protest (Enviro on Fire)

    11/14/2005 1:43:19 PM PST · by proud_yank · 23 replies · 696+ views
    Globe and Mail (Canadia) ^ | Nov 14, 2005 | AP
    Brazilian environmentalist dies in protest Monday, November 14, 2005 Posted at 2:06 PM EST Associated Press Rio de Janeiro — A crusading defender of Brazil's Pantanal wetlands died of his burns after setting himself on fire to protest a proposed sugarcane alcohol plant in the environmentally fragile region, hospital officials said Monday. Francisco Anselmo de Barros, 65, wrapped himself in an alcohol-soaked blanket and set it on fire during a protest Saturday in Campo Grande, 1,200 kilometres northwest of Rio de Janeiro, according to officials at the Santa Casa hospital. Fellow protesters smothered the fire with blankets and sprayed it...
  • Branching Out (biotech trees)

    05/13/2004 6:58:48 PM PDT · by farmfriend · 7 replies · 256+ views
    Tech Central Station ^ | 05/13/2004 | Stephen Mbogo
    Branching Out By Stephen Mbogo Technology is proving to be a goose that lays golden eggs for Africa. Trends being adopted in Africa are catalyzing the continent's social, economic and political development. What remains to be seen is how soon and fast Africans can adapt to these technologies so that they can benefit from them. Take for instance a new concept of growing biotechnology-developed trees. It is revolutionary in its nature and has come at an apt time, just when trees are gaining their true value in Africa. Formerly, trees mostly used in traditional ways: processed for firewood and timber,...
  • Earth Day, Then and Now. The planet's future has never looked better. Here's why.

    04/21/2002 3:56:07 PM PDT · by grundle · 25 replies · 868+ views
    REASON ^ | May 2000 | Ronald Bailey
    REASON * May 2000 Earth Day, Then and Now The planet's future has never looked better. Here's why. By Ronald Bailey Thirty Years ago, 20 million Americans participated in the first Earth Day on April 22, 1970. Fifth Avenue in New York City was closed to automobiles as 100,000 people joined in concerts, lectures, and street theater. More than 2,000 colleges and universities across America paused their anti-war protests to rally instead against pollution and population growth. Even Congress recessed, acknowledging that the environment was now on a political par with motherhood. Since that first Earth Day, the celebrations...
  • Scientists Say Global Warming Slows Earth's Spin

    02/13/2002 7:08:17 AM PST · by johniegrad · 75 replies · 1,160+ views
    Duluth News Tribune ^ | 13 Feb 02 | Seth Borenstein
    WASHINGTON -- Feeling like the day is dragging? Blame global warming.Increased man-made carbon dioxide in the atmosphere, a global warming gas, is slowing the Earth's rotation, according to a new study by Belgian scientists published Tuesday in the journal Geophysical Research Letters.It's not much of a slowdown -- about 1.7 microsecond or 1.7 millionth of one second a year, according to co-author Michel Crucifix, a climate researcher at Catholic University of Louvain in Belgium. The slowdown occurs because extra carbon dioxide expands the mass of the Earth's atmosphere from the Earth's surface. The change slows the Earth's rotation for the ...
  • Tropical Deforestation Monitored by Satellite

    10/16/2002 8:22:11 AM PDT · by cogitator · 9 replies · 381+ views
    Tropical Deforestation Monitored by Satellite COLLEGE PARK, Maryland, October 15, 2002 (ENS) - Satellite surveys show that less tropical forests were lost over the past two decades than previously estimated, but that the rate of loss is increasing. A research team led by the University of Maryland is the first to provide measures of how much tropical deforestation occurred during the past 20 years based on remote sensing data covering all the world's tropical forests. The team, whose research was supported by the National Aeronautics and Space Administration (NASA), evaluated weather satellite data using computer models they developed for...
  • The Good News Is That Bad News Is Wrong (Sky Not Falling)

    09/20/2002 2:49:09 PM PDT · by Tailgunner Joe · 12 replies · 492+ views
    Insight ^ | Sept. 18, 2002 | John Pike
    By October of 1630 the tadpole-shaped peninsula called Boston had 150 English-speaking residents. Led by John Winthrop, the colony's first governor, these Puritan emigrants virtually began the historical process in which large numbers of recent European arrivals settled and subdued Massachusetts Bay and the North American environment during the next three-and-one-half centuries. With each austere-living family constructing a wooden home and fencing an adjacent garden, Bostonians by the 1640s already were traversing the Charles River to gather firewood and building materials as precious timber close at hand virtually had been erased. As early as the winter of 1637-38, Winthrop noted,...
  • Saving the Selva Maya a Tropical Forest/Jungle in Central America

    08/23/2003 7:34:05 PM PDT · by Coleus · 16 replies · 1,181+ views
    The Record of Hackensack ^ | 06.29.03 | Jim Wright
    Saving the Selva Maya Sunday, June 29, 2003, By JIM WRIGHT Editor's note: As part of his research for a book, Editorial Writer Jim Wright made several recent trips to the tropical forest in Belize, where until a few weeks ago a smoky haze often clouded the skies. WHAT IS THE SELVA MAYA?The Selva Maya consists of mostly contiguous jungle in three Central American nations: Guatemala, Mexico, and Belize. The three nations have created biosphere reserves, national parks, and other conservation areas to protect the jungle, conduct scientific research, and seek sustainable development. Guatemala has the 5-million-acre Maya Biosphere Reserve.Mexico's...