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Archive.Today Sahara Desert Greening Due to Climate Change? archive.today Saved from http://news.nationalgeographic.com/news/2009/07/090731-green-sahara.html search 15 Jul 2012 01:42:05 UTC webpage capture history All snapshots from host news.nationalgeographic.com Linked from green.wikia.com » Sahara as.wikipedia.org » চাহাৰা 13 more Webpage Screenshot share download .zip report error or abuse % % Site Index Subscriptions Shop Newsletters About the Society % % % % % HOME % ANIMALS DAILY NEWS % Thursday, October 28, 2010 ENVIRONMENT % GAMES MAIN ANIMAL NEWS ANCIENT WORLD ENVIRONMENT NEWS CULTURES NEWS SPACE/TECH NEWS WEIRD PHOTOS VIDEO % GREEN GUIDE HISTORY Sahara Desert Greening Due to Climate LATEST PHOTO NEWS KIDS Change? SPACE PHOTOS THIS WEEK: Tiny MAPS Galaxy, Sun's Iron, More MUSIC James Owen for National Geographic News LATEST VIDEO NEWS PHOTOGRAPHY July 31, 2009 Stuck Mars Rover About to Die? SCIENCE & SPACE Desertification, drought, and despair—that's what global warming has in TRAVEL & CULTURES Most Viewed News store for much of Africa. Or so we hear. VIDEO ADVERTISEMENT Emerging evidence is painting a very different scenario, one in which rising temperatures could benefit millions of Africans in the driest parts of the continent. NATIONAL GEOGRAPHIC Scientists are now seeing signals that the CHANNEL Sahara desert and surrounding regions are greening due to increasing rainfall. MAGAZINES NATIONAL If sustained, these rains could revitalize GEOGRAPHIC drought-ravaged regions, reclaiming them for TRAVELER farming communities. ADVENTURE This desert-shrinking trend is supported by SHOP Enlarge Photo climate models, which predict a return to SUBSCRIPTIONS conditions that turned the Sahara into a lush savanna some 12,000 years ago. TV & FILM Printer Friendly TRAVEL WITH US Email to a Friend Green Shoots OUR MISSION SHARE What's This? The green shoots of recovery are showing up LATEST PHOTOS IN THE NEWS Digg on satellite images of regions including the Sahel, a semi-desert zone bordering the SPACE PHOTOS THIS WEEK: Tiny StumbleUpon Sahara to the south that stretches some 2,400 Galaxy, Sun's Iron, More Reddit miles (3,860 kilometers). Images taken between 1982 and 2002 SPACE PHOTOS THIS WEEK: Tiny Galaxy, Sun's Shop RELATED revealed extensive regreening throughout the Iron, More Sahel, according to a new study in the journal Our Store "Camel Contest" in National Biogeosciences. SPACE PHOTOS THIS WEEK: Star Geographic Magazine Birth, Active Sun, More • Books & Atlases Ancient Cemetery Found; Brings The study suggests huge increases in • Clothing & "Green Sahara" to Life vegetation in areas including central Chad and Accessories western Sudan. More Photos in the News Exodus From Drying Sahara Gave • DVDs Rise to Pharaohs, Study Says The transition may be occurring because • Maps hotter air has more capacity to hold moisture, which in turn creates more rain, said Martin NATIONAL GEOGRAPHIC'S PHOTO OF THE DAY • Catalog Quick Claussen of the Max Planck Institute for Shop Meteorology in Hamburg, Germany, who was not involved in the new study. • Today's Photo "The water-holding capacity of the air is the main driving force," Claussen said. • Download as Wallpaper Sign up for free (See a map of global warming's impacts.) Newsletters NEWS FEEDS Once a month Continued on Next Page >> get new photos Get our news delivered directly to your desktop—free. and expert tips. How to Use XML or RSS Sign up LATEST NEWS VIDEOS SOURCES AND RELATED WEB NATIONAL GEOGRAPHIC DAILY NEWS TO-GO SITES ADVERTISEMENT Stuck Mars Rover About Listen to your favorite National Geographic news daily, to Die? Africa Research Unit, University of anytime, anywhere from your mobile phone. No wires or Cologne: Stefan Kröpelin syncing. Download Stitcher free today. Giant Salamanders Biogeosciences Helped to Spawn Max Planck Institute for Meteorology: Martin Claussen Rare Gorillas Spied Royal Netherlands Meteorological Feasting on Figs Institute More Videos in the News Sponsored Links archive.today Saved from http://news.nationalgeographic.com/news/2009/07/090731-green-sahara_2.html search 22 Mar 2016 20:32:21 UTC webpage capture history All snapshots from host news.nationalgeographic.com Webpage Screenshot share download .zip report error or abuse % % Site Index Subscriptions Shop Newsletters About the Society % % % % % HOME ANIMALS % DAILY NEWS Thursday, October 28, 2010 % ENVIRONMENT GAMES MAIN ANIMAL NEWS ANCIENT WORLD ENVIRONMENT NEWS CULTURES NEWS SPACE/TECH NEWS WEIRD PHOTOS VIDEO % GREEN GUIDE % HISTORY Sahara Desert Greening Due to Climate KIDS Change? MAPS MUSIC << Back to Page 1 Page 2 of 2 LATEST PHOTO NEWS PHOTOGRAPHY Not a Single Scorpion SPACE PHOTOS THIS WEEK: Tiny Galaxy, Sun's Iron, More SCIENCE & SPACE While satellite images can't distinguish temporary plants like grasses that come TRAVEL & CULTURES LATEST VIDEO NEWS and go with the rains, ground surveys suggest recent vegetation change is firmly Stuck Mars Rover About to Die? VIDEO rooted. In the eastern Sahara area of southwestern Most Viewed News Egypt and northern Sudan, new trees—such NATIONAL as acacias—are flourishing, according to ADVERTISEMENT GEOGRAPHIC CHANNEL Stefan Kröpelin, a climate scientist at the University of Cologne's Africa Research Unit in LATEST PHOTOS IN THE NEWS MAGAZINES Germany. NATIONAL SPACE PHOTOS THIS WEEK: Tiny GEOGRAPHIC "Shrubs are coming up and growing into big Galaxy, Sun's Iron, More TRAVELER shrubs. This is completely different from Enlarge Photo having a bit more tiny grass," said Kröpelin, ADVENTURE who has studied the region for two decades. SPACE PHOTOS THIS WEEK: Tiny Galaxy, Sun's SHOP Iron, More Printer Friendly In 2008 Kröpelin—not involved in the new SUBSCRIPTIONS Email to a Friend satellite research—visited Western Sahara, a SPACE PHOTOS THIS WEEK: Star TV & FILM disputed territory controlled by Morocco. Birth, Active Sun, More TRAVEL WITH US SHARE What's This? OUR MISSION Digg "The nomads there told me there was never as much rainfall as in the past few years," More Photos in the News StumbleUpon Kröpelin said. "They have never seen so much Reddit grazing land." "Before, there was not a single scorpion, not a RELATED single blade of grass," he said. NATIONAL GEOGRAPHIC'S PHOTO OF THE DAY "Camel Contest" in National "Now you have people grazing their camels in • Today's Photo Geographic Magazine Shop areas which may not have been used for • Download as Wallpaper Our Store Ancient Cemetery Found; Brings hundreds or even thousands of years. You see "Green Sahara" to Life birds, ostriches, gazelles coming back, even • Books & Atlases sorts of amphibians coming back," he said. NEWS FEEDS Exodus From Drying Sahara Gave • Clothing & Rise to Pharaohs, Study Says "The trend has continued for more than 20 Get our news delivered directly to your desktop—free. Accessories years. It is indisputable." How to Use XML or RSS • DVDs Uncertain Future • Maps NATIONAL GEOGRAPHIC DAILY NEWS TO-GO An explosion in plant growth has been predicted by some climate models. • Catalog Quick Listen to your favorite National Geographic news daily, Shop For instance, in 2005 a team led by Reindert Haarsma of the Royal Netherlands anytime, anywhere from your mobile phone. No wires or syncing. Download Stitcher free today. Meteorological Institute in De Bilt, the Netherlands, forecast significantly more future rainfall in the Sahel. Sign up for free Newsletters The study in Geophysical Research Letters predicted that rainfall in the July to September wet season would rise by up to two millimeters a day by 2080. Once a month get new photos and expert tips. Satellite data shows "that indeed during the last decade, the Sahel is becoming more green," Haarsma said. Sign up Even so, climate scientists don't agree on how future climate change will affect the Sahel: Some studies simulate a decrease in rainfall. Sponsored Links ADVERTISEMENT "This issue is still rather uncertain," Haarsma said. Max Planck's Claussen said North Africa is the area of greatest disagreement among climate change modelers. Forecasting how global warming will affect the region is complicated by its vast size and the unpredictable influence of high-altitude winds that disperse monsoon rains, Claussen added. "Half the models follow a wetter trend, and half a drier trend." << Back to Page 1 Page 2 of 2 LATEST NEWS VIDEOS SOURCES AND RELATED WEB Stuck Mars Rover About SITES.
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