Humans may have lived in America 115,000 years earlier than we thought

April 27, 2017 by  
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For years, scientists have believed that humanity was a relatively recent visitor to the North American continent, migrating from Siberia only 15,000 years ago. Now, more accurate dating of mastodon fossils from California shows that an early human ancestor likely existed on the continent 130,000 years ago , far further back than even the most extreme estimates made by previous researchers. The fossils consist of elephant-like teeth and bones, which were discovered in Southern California during the construction of an expressway in 1992. The fossils bear clear signs of deliberate breakage using stone hammers and other early human tools – but until recently, dating technology was not sophisticated enough to accurately pinpoint the era from which they originated. Related: Archaeologist suggests ancient humans helped catalyze the Sahara’s desertification Using new methods to measure traces of natural uranium in the bones, researchers with the US Geological Survey and the Center for American Paleolithic Research found these bones were far older than the era when humans are generally accepted to have lived in America. While these people were clearly somehow related to modern-day humans, and were advanced enough to create and use stone tools, researchers say that they wouldn’t have been Homo sapiens as we know them. Our species didn’t leave Africa until 80,000 to 100,000 years ago. Instead, some likely candidates are Homo erectus, the Neanderthals, or perhaps a little-known hominid species called the Denisovans , whose DNA can still be found in Australian aboriginal populations today. It’s likely this ancient human population died out before Homo sapiens eventually crossed the Pacific. It’s believed they did not interbreed with modern humans and likely are not direct ancestors of any Native American groups. The new findings have been published in the journal Nature . Via Phys.org Images via San Diego Natural History Museum

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Humans may have lived in America 115,000 years earlier than we thought

Newly discovered link between two faults could lead to a much bigger San Francisco earthquake

October 21, 2016 by  
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San Francisco is expected to be hit with a 6.7 magnitude or higher earthquake before 2032, according to the US Geological Survey (USGS). But USGS scientists just discovered that two fault lines in the area are connected, which could make a Bay Area earthquake much worse. The Rodgers Creek and Hayward fault lines are linked, which means they could rupture together and San Francisco could be rocked with a 7.4 magnitude earthquake. Four USGS scientists found that the Hayward fault, which runs beneath neighborhoods east of San Francisco, and the Rodgers Creek fault, which runs through wine county, are linked. The two connect under the San Pablo Bay, north of the city, and together run 118 miles. If the fault lines rupture together, it could result in an earthquake that releases five times as much energy than if the Hayward fault ruptured on its own. Related: NASA experts say California’s next big earthquake could happen in less than three years Even worse, such an earthquake could come soon – there’s usually 140 years between earthquakes on the Hayward fault, but the last quake along the line was 148 years ago in 1868, when a 6.8 magnitude quake killed 30 people. A earthquake along both fault lines could result in a quake over five times more powerful than a 1989 earthquake along the San Andreas fault . More than 60 people died then, and a portion of the San Francisco – Oakland Bay Bridge collapsed. USGS geophysicist and study lead writer Janet Watt told New Scientist , “The concerning thing with the Hayward and Rodgers Creek faults is that they’ve accumulated enough stress to be released in a major earthquake. They’re, in a sense, primed.” The journal Science Advances published the scientists’ research online this week. What can Bay Area residents do to get ready? University of California, Berkeley fault researcher Roland Bürgmann told New Scientist it’s important to be prepared “at all levels” – from resilient construction techniques to early warning systems to having your own supplies ready if an earthquake occurs. + Science Advances Via New Scientist and Phys.org Images via Pixabay and Wikimedia Commons

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Newly discovered link between two faults could lead to a much bigger San Francisco earthquake

California is tapping water that rained 20,000 years ago to deal with epic drought

March 19, 2015 by  
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California has been making headlines for the gravity of its prolonged drought . This January was the driest month on record since 1895 and the latest estimates warn that the  Golden State has just one year of water left. If dried-up wells and sinking farmland are not dire enough, how does drinking prehistoric water sound? That’s right, California is so thirsty that it’s drilling down through the eons to tap water that fell on Earth 10,000 to 20,000 years ago. Read the rest of California is tapping water that rained 20,000 years ago to deal with epic drought Permalink | Add to del.icio.us | digg Post tags: california drought , Carbon dating , ground water , ice age water , los angeles times , Pleistocene Epoch , prehistoric water , subsidence , us geological survey , water drilling , water issues

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California is tapping water that rained 20,000 years ago to deal with epic drought

Roots Up’s Dew Collector greenhouse provides veggies and water in Ethiopia

March 19, 2015 by  
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Read the rest of Roots Up’s Dew Collector greenhouse provides veggies and water in Ethiopia Permalink | Add to del.icio.us | digg Post tags: Dew Collector Green House , eco design , green design , rainwater collection , Roots Up , self-reliant farming Ethiopia , sustainable design

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Roots Up’s Dew Collector greenhouse provides veggies and water in Ethiopia

Surge of earthquakes in Oklahoma puts fracking under fire

February 26, 2015 by  
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There were more earthquakes with a magnitude 3.0 or greater in Oklahoma last year than anywhere else in the continental United States. Whereas Oklahoma used to feel one or two tremors a year, it now experiences two to three per day. This spike parallels the state’s boom in shale gas production, and scientists and environmentalists are pointing their fingers at fracking. Read the rest of Surge of earthquakes in Oklahoma puts fracking under fire Permalink | Add to del.icio.us | digg Post tags: earthquake , earthquakes , fracking , Fracking earthquake , fracking earthquakes , hydraulic fracturing , oklahoma , Oklahoma Corporation Commission , oklahoma earthquakes , Oklahoma fracking , Oklahoma fracking earthquakes , Oklahoma oil industry , shale gas production , us geological survey , wastewater injection

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Surge of earthquakes in Oklahoma puts fracking under fire

Mississippi River Flooding Forces Evacuation in Missouri After Levee Breach

June 4, 2013 by  
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June, 2008 sandbag effort. Hundreds of people living in St. Charles County near St. Louis, Missouri were evacuated from their homes after a levee breach Monday night. The Mississippi River at St. Louis was 10 feet above flood stage overnight according to the US Geological Survey , and flood warnings were put into effect from Illinois down to Louisiana. Residents of West Alton, MO have been told to review their exit plans and get ready to leave as the sandbag reinforced levees are also beginning to show signs of stress in their area. Read the rest of Mississippi River Flooding Forces Evacuation in Missouri After Levee Breach Permalink | Add to del.icio.us | digg Post tags: allenville , alton bridge , argosy alto casino , con agra plant , corps of engineers , evacuation , flood , grafton , mike peterson , Mississippi , Missouri , modot , river , st. charles county , st. louis , tornado , us geological survey , west alton        

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Mississippi River Flooding Forces Evacuation in Missouri After Levee Breach

7.5 Magnitude Earthquake Off Alaskan Coast Prompts Tsunami Warning

January 7, 2013 by  
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A powerful earthquake 60 miles west of Craig shook the Alaskan coast at midnight Friday. The 7.5 magnitude earthquake prompted a tsunami alert for communities along a 700 mile stretch of coastline, reaching from Alaska to Vancouver Island, Canada and prompted some to rush to higher ground for safety. The warning ceased Saturday, after the Alaska Tsunami Warning Center advised that the waves were not high enough to pose a threat to surrounding areas. Read the rest of 7.5 Magnitude Earthquake Off Alaskan Coast Prompts Tsunami Warning Permalink | Add to del.icio.us | digg Post tags: 7.5 earthquake Alaska , Alaska earthquake 2013 , Alaska Tsunami Warning Center , Canada tsunami alert , earthquake magnitude , natural disasters , North America earthquakes 2013 , tsunami earthquake , tsunami warnings 2013 , us earthquake , us geological survey

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7.5 Magnitude Earthquake Off Alaskan Coast Prompts Tsunami Warning

7.5 Magnitude Earthquake Off Alaskan Coast Prompts Tsunami Warning

January 7, 2013 by  
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A powerful earthquake 60 miles west of Craig shook the Alaskan coast at midnight Friday. The 7.5 magnitude earthquake prompted a tsunami alert for communities along a 700 mile stretch of coastline, reaching from Alaska to Vancouver Island, Canada and prompted some to rush to higher ground for safety. The warning ceased Saturday, after the Alaska Tsunami Warning Center advised that the waves were not high enough to pose a threat to surrounding areas. Read the rest of 7.5 Magnitude Earthquake Off Alaskan Coast Prompts Tsunami Warning Permalink | Add to del.icio.us | digg Post tags: 7.5 earthquake Alaska , Alaska earthquake 2013 , Alaska Tsunami Warning Center , Canada tsunami alert , earthquake magnitude , natural disasters , North America earthquakes 2013 , tsunami earthquake , tsunami warnings 2013 , us earthquake , us geological survey

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7.5 Magnitude Earthquake Off Alaskan Coast Prompts Tsunami Warning

GIVEAWAY: Win an Organic Cotton Tassel Scarf from Indigenous (Worth $70)!

January 7, 2013 by  
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If one of your new year’s resolutions was to buy more ethical clothing, then you’re in the right place. We’re teaming up with our friends over at Indigenous to give THREE lucky readers a super-soft platinum  Tassel Scarf  (worth $70) for free!  This beautiful scarf is Fair Trade certified and handmade using organic cotton and low-impact dyes by women artisans who are guaranteed a living wage . Cozy up to this scarf this winter, and enter now to win ! ENTER NOW > Permalink | Add to del.icio.us | digg Post tags: eco friendly accessories , eco friendly knits , eco-fashion , eco-fashion giveaways , eco-friendly knitwear , eco-friendly scarves , Ethical Fashion , ethical scarves , Fair Trade , fair trade clothing , fair trade scarves , fair-trade fashion , green fashion , Indigenous , Indigenous Designs , low impact dyes , organic cotton , sustainable accessories , Sustainable Fashion , sustainable knits , sustainable knitwear , sustainable scarves , sustainable style

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GIVEAWAY: Win an Organic Cotton Tassel Scarf from Indigenous (Worth $70)!

Nevada Gives Audi the First Automaker Permit to Operate Autonomous Vehicles on Public Roads

January 7, 2013 by  
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Audi has announced that the State of Nevada has issued it a permit allowing the testing of autonomous vehicles on the state’s public roads. This is only the second permit that Nevada has given out, with the first one being given to Google . The new permit makes Audi the first automotive manufacturer to obtain this special permit. Read the rest of Nevada Gives Audi the First Automaker Permit to Operate Autonomous Vehicles on Public Roads Permalink | Add to del.icio.us | digg Post tags: AUDI , Audi autonomous vehicle , Audi TT , automotive , autonomous vehicles , Google , green transportation , piloted driving , piloted parking

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Nevada Gives Audi the First Automaker Permit to Operate Autonomous Vehicles on Public Roads

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