archive-org.com » ORG » F » FUTURITY.ORG

Total: 1240

Choose link from "Titles, links and description words view":

Or switch to "Titles and links view".
  • 'Tough love' for energy reform so far - Futurity
    Journal writes in the current edition of Foreign Affairs that the world s renewable energy push has been sloppy so far The effort can be fixed through a new approach that forces these technologies to become more economically efficient he writes in the article Tough Love for Renewable Energy It is time to push harder for renewable power but to push in a smarter way Ball writes Kassia Yanosek a private equity investor writes in the journal Daedalus that attempting to accelerate a transition to a low carbon economy is expensive and risky Policymakers says Yanosek need to realize that achieving a transition with government aided commercialization programs will require putting billions of taxpayer dollars at risk often in a high profile way If government officials wish to accelerate the next energy transition they will need a different strategy to develop an industry that can survive without major subsidies one that prioritizes funding to commercialize decarbonized energy technologies that can compete dollar for dollar against carbon based energy Yanosek says With natural gas prices so low due to huge new supplies of shale gas besting the current energy system has become tougher Reinvention not rejection Ball writes that governments and investors have spent big money on renewable power slashing the cost of many renewable technologies and creating jobs And yet he notes modern renewables remain a very small percentage of the global energy mix Wind and solar power will never reach the scale necessary to make a difference to national security or the environment unless they can be produced economically he writes The objective is not wind turbines or solar panels It is an affordable convenient secure and sustainable stream of electrons Taken together the analyses by Ball and Yanosek argue for driving down the costs of key technologies and speeding up their deployment says Dan Reicher the executive director of the Steyer Taylor Center This will require the right mix of targeted government policy and hard nosed private sector investment says Reicher a law professor and business school lecturer and formerly an assistant US energy secretary and private equity investor Ball in Foreign Affairs writes that rationalizing the conflicting patchwork of energy subsidies that has been stitched together over the decades is essential Supporters of renewable energy point out that public subsidies for these technologies are a fraction of those for fossil fuels both globally and in the United States Realistically Ball figures subsidies should be examined not just in total dollar amounts but also per unit of energy produced This more apples to apples comparison would help foster an honest debate about which subsidies best promote the type of energy system countries want Also key to America pursuing clean energy in the most economically efficient way is for the country to exploit globalization rather than fight it Ball writes Despite mounting trade war tensions with China over wind and solar power he writes If the goal of the renewable power push is a cleaner more diversified power supply

    Original URL path: http://www.futurity.org/tough-love-for-energy-reform-so-far/ (2016-02-12)
    Open archived version from archive


  • These bacteria leave dangerous uranium 'immobile' - Futurity
    of Virginia University of Warwick University of Washington University of York Vanderbilt University Washington University in St Louis Yale University Earth and Environment Related Articles Rockies snow loss unrivaled in 800 years Water adds fuel to fire of erupting volcanoes Hawaii souvenirs reveal which fish ran out Share This Article facebook twitter Action googleplus Google linkedin LinkedIn pinterest Pinterest reddit Reddit Stumbleupon mail Email Print After the newly discovered bacteria interact with uranium compounds in water the uranium becomes immobile says Lee Kerkhof It is no longer dissolved in the groundwater and therefore can t contaminate drinking water brought to the surface Credit warning sign via Shutterstock These bacteria leave dangerous uranium immobile Rutgers University right Original Study Posted by Carl Blesch Rutgers on June 17 2015 You are free to share this article under the Attribution 4 0 International license A strain of bacteria that breathes uranium may be key to cleaning up polluted groundwater at sites where uranium ore was processed to make nuclear weapons Scientists discovered the bacteria in soil at an old uranium ore mill in Rifle Colorado almost 200 miles west of Denver The site is one of nine such mills in Colorado used during the heyday of nuclear weapons production The research is part of a US Department of Energy program to see if microorganisms can lock up uranium that leached into the soil years ago and now makes well water in the area unsafe to drink The team s discovery published in PLOS ONE is the first known instance where scientists have found a bacterium from a common class known as betaproteobacteria that breathes uranium This bacterium can breathe either oxygen or uranium to drive the chemical reactions that provide life giving energy After the newly discovered bacteria interact with uranium compounds in water the uranium becomes immobile says Lee Kerkhof a professor of marine and coastal science in the Rutgers School of Environmental and Biological Sciences It is no longer dissolved in the groundwater and therefore can t contaminate drinking water brought to the surface Mysterious microbes Breathing uranium is rather rare in the microbial world Most examples of bacteria that can respire uranium cannot breathe oxygen but often breathe compounds based on metals typically forms of solid iron Scientists had previously witnessed decreasing concentrations of uranium in groundwater when iron breathing bacteria were active but they have yet to show that those iron breathing bacteria were directly respiring the uranium While the chemical reaction that the bacteria perform on uranium is a common process known as reduction or the act of accepting electrons Kerkhof says it s still a mystery how the reduced uranium produced by this microorganism ultimately behaves in the subsurface environment It appears that they form uranium nanoparticles he says but the mineralogy is still not well known and will be the subject of ongoing research Gene swappers The Rutgers team was able to isolate the uranium breathing bacterium in the lab by recognizing that uranium in samples

    Original URL path: http://www.futurity.org/uranium-bacteria-943732/ (2016-02-12)
    Open archived version from archive

  • Less snow leads to hotter planet - Futurity
    Iowa University of Kansas University of Leeds University of Maryland University of Melbourne University of Michigan University of Minnesota University of Missouri University of North Carolina at Chapel Hill University of Nottingham University of Oregon University of Pennsylvania University of Pittsburgh University of Queensland University of Rochester University of Sheffield University of Southampton University of Southern California University of Texas at Austin University of Toronto University of Virginia University of Warwick University of Washington University of York Vanderbilt University Washington University in St Louis Yale University Earth and Environment Related Articles Little global warming goes a long way Invasive plant beats weapons but not goats The Arctic emits more methane than we thought Share This Article facebook twitter Action googleplus Google linkedin LinkedIn pinterest Pinterest reddit Reddit Stumbleupon mail Email Print Less snow leads to hotter planet University of Michigan Posted by Nicole Casal Moore Michigan on January 20 2011 You are free to share this article under the Attribution 4 0 International license U MICHIGAN US Decreases in the Earth s snow and ice cover have exacerbated global warming more than previously thought according to a new study Researchers analyzed satellite data showing snow and ice during the past three decades in the Northern Hemisphere which holds the majority of the planet s frozen surface area Details are published online in the journal Nature Geoscience Snow and ice reflect the sun s light and heat back to space causing an atmospheric cooling effect But as the planet warms more ice melts and in some cases less snow falls exposing additional ground and water that absorb more heat amplifying the effects of warmer temperatures This change in reflectance contributes to what s called albedo feedback one of the main positive feedback mechanisms adding fuel to the planet s warming trend The strongest positive feedback is from atmospheric water vapor and cloud changes may also enhance warming If the Earth were just a static rock we could calculate precisely what the level of warming would be given a perturbation to the system says Mark Flanner assistant professor of atmospheric oceanic and space sciences at University of Michigan But because of these feedback mechanisms we don t know exactly how the climate will respond to increases in atmospheric carbon dioxide Our analysis of snow and sea ice changes over the last 30 years indicates that this cryospheric feedback is almost twice as strong as what models have simulated The implication is that Earth s climate may be more sensitive to increases in atmospheric carbon dioxide and other perturbations than models predict The cryosphere is the planet s layer of snow sea ice and permanent ice sheets In the Northern Hemisphere since 1979 the average temperature rose by about 0 7 degrees Celsius whereas the global average temperature rose by about 0 45 degrees Flanner says For every 1 degree Celsius rise in the Northern Hemisphere Flanner calculated an average of 0 6 fewer watts of solar radiation reflected to space per square

    Original URL path: http://www.futurity.org/less-snow-leads-to-hotter-planet/ (2016-02-12)
    Open archived version from archive

  • Did this 1945 nuclear test trigger a new age? - Futurity
    of Maryland University of Melbourne University of Michigan University of Minnesota University of Missouri University of North Carolina at Chapel Hill University of Nottingham University of Oregon University of Pennsylvania University of Pittsburgh University of Queensland University of Rochester University of Sheffield University of Southampton University of Southern California University of Texas at Austin University of Toronto University of Virginia University of Warwick University of Washington University of York Vanderbilt University Washington University in St Louis Yale University Earth and Environment Related Articles Is down the drain ibuprofen making fish sick Smoke from fires fueled 2011 tornado outbreak Extreme makeover for dwindling prairie dog Share This Article facebook twitter Action googleplus Google linkedin LinkedIn pinterest Pinterest reddit Reddit Stumbleupon mail Email Print Above the Trinity test fireball 0 016 second after detonation Color added Credit via Wikimedia Commons Did this 1945 nuclear test trigger a new age University of California Berkeley right Original Study Posted by Robert Sanders UC Berkeley on January 20 2015 You are free to share this article under the Attribution 4 0 International license Scientists have proposed that the Trinity nuclear test conducted on July 16 1945 was the dawn of the Anthropocene age an era in which humans increasingly shape the planet Scientists divide Earth history into epochs periods and other time units bounded by geological or biological signals such as those left in the rock record by the mass extinctions that ended the Cretaceous and Permian eras and the end of the last ice age that kicked off the current Holocene epoch Defining the Anthropocene as a new geological epoch would imply that humans are a geological force every bit as powerful as the natural ones that caused such things as the onset of ice ages and major extinction events in Earth s past says paleontologist Anthony Barnosky professor of integrative biology at University of California Berkeley The recommendation published online this week in the journal Quaternary International was made by 26 members of the 38 member Anthropocene Working Group an international panel charged with assembling evidence on whether the Anthropocene should be formally designated as a new geological epoch and if so where to place its beginning Why Anthropocene The term Anthropocene was coined by Nobel Prize winning atmospheric chemist Paul Crutzen and the late University of Michigan biologist Eugene Stoermer in 2000 to denote the time interval in Earth s history during which many geologically significant conditions and processes became forever altered by human activities A logical and tractable start point for the Anthropocene would be the date of the first atomic bomb detonation in New Mexico in part because it can be measured easily as a result of the worldwide spread of artificial radioactivity from nuclear bomb tests The period also roughly coincides with the global proliferation of major human caused influences that leave permanent evidence in the geological record Since 1945 there has been a great acceleration of population carbon emissions species invasions and extinctions earth moving and production of

    Original URL path: http://www.futurity.org/anthropocene-age-trinity-841102/ (2016-02-12)
    Open archived version from archive

  • Flower power lets the globe chill out - Futurity
    University of Missouri University of North Carolina at Chapel Hill University of Nottingham University of Oregon University of Pennsylvania University of Pittsburgh University of Queensland University of Rochester University of Sheffield University of Southampton University of Southern California University of Texas at Austin University of Toronto University of Virginia University of Warwick University of Washington University of York Vanderbilt University Washington University in St Louis Yale University Earth and Environment Related Articles Salt marshes are at risk but not from crazy storms To cut black carbon replace kerosene lamps 3 ways smaller prey change blue hole fish Flower power lets the globe chill out University of Chicago Posted by Steve Koppes Chicago on June 17 2010 You are free to share this article under the Attribution 4 0 International license U CHICAGO US The world is a cooler wetter place because of flowering plants according to new climate simulations The effect is especially pronounced in the Amazon basin where replacing flowering plants with non flowering varieties would result in an 80 percent decrease in the area covered by ever wet rainforest The simulations demonstrate the importance of flowering plant physiology to climate regulation in ever wet rainforest regions where the dry season is short or non existent and where biodiversity is greatest Details are published in the journal Proceedings of the Royal Society B The vein density of leaves within the flowering plants is much much higher than all other plants says the study s lead author C Kevin Boyce an associate professor in geophysical sciences at the University of Chicago That actually matters physiologically for both taking in carbon dioxide from the atmosphere for photosynthesis and also the loss of water which is transpiration The two necessarily go together You can t take in CO2 without losing water Why vein density matters This higher vein density in the leaves means that flowering plants are highly efficient at transpiring water from the soil back into the sky where it can return to Earth as rain That whole recycling process is dependent upon transpiration and transpiration would have been much much lower in the absence of flowering plants Boyce says We can know that because no leaves throughout the fossil record approach the vein densities seen in flowering plant leaves For most of biological history there were no flowering plants known scientifically as angiosperms They evolved about 120 million years ago during the Cretaceous Period and took another 20 million years to become prevalent Flowering species were latecomers to the world of vascular plants a group that includes ferns club mosses and confers But angiosperms now enjoy a position of world domination among plants Researchers at the University of Chicago conducted a climate study which found that the tropics are cooler and wetter because of flowering plants Credit Dan Dry They re basically everywhere and everything unless you re talking about high altitudes and very high latitudes Boyce says Plants and dinos Dinosaurs walked the Earth when flowering plants evolved and

    Original URL path: http://www.futurity.org/flower-power-lets-the-globe-chill-out/ (2016-02-12)
    Open archived version from archive

  • Foam filter uses biofilm to clean water - Futurity
    Johns Hopkins University McGill University Michigan State University Monash University National University of Singapore New York University Northwestern University Penn State Princeton University Purdue University Rice University Rutgers University Stanford University Stony Brook University Syracuse University Texas A M University Tulane University University at Buffalo University College London University of Arizona University of California at Irvine University of California Berkeley University of California Davis University of California Santa Barbara University of Chicago University of Colorado at Boulder University of Copenhagen University of Florida University of Illinois University of Iowa University of Kansas University of Leeds University of Maryland University of Melbourne University of Michigan University of Minnesota University of Missouri University of North Carolina at Chapel Hill University of Nottingham University of Oregon University of Pennsylvania University of Pittsburgh University of Queensland University of Rochester University of Sheffield University of Southampton University of Southern California University of Texas at Austin University of Toronto University of Virginia University of Warwick University of Washington University of York Vanderbilt University Washington University in St Louis Yale University Health and Medicine Related Articles Add lysosome diseases to baby screenings Why cells in 3 D may help curb cancer Thought controlled exoskeleton could let paralyzed people walk Share This Article facebook twitter Action googleplus Google linkedin LinkedIn pinterest Pinterest reddit Reddit Stumbleupon mail Email Print Researchers will conduct field studies at the Crow Reservation in Montana and in a small village outside of Tamale in Ghana Above a girl carries water in Accra Ghana s capital Credit Sura Nualpradid Shutterstock com Foam filter uses biofilm to clean water Michigan State University right Original Study Posted by Mackenzie Kastl Michigan State on April 29 2015 You are free to share this article under the Attribution 4 0 International license A new foam filter could be a way to get clean water to the estimated one in nine people who lack it worldwide The device significantly reduces dangerous pathogens in drinking water The foam filter is the first of its kind to address a wide range of the biological and economic factors that hinder development of remote water filtration systems says Joan Rose chair in water research and author of the study This filter is easier to use and more effective than traditional methods Published in the American Journal of Tropical Medicine and Hygiene the study examines a multibarrier biofilm foam filter designed and manufactured by Amway as a low cost alternative to existing household filtration methods The foam filter combines existing water treatment principles and is evidence that conventional municipal water treatment processes can be reinvented into a small light and portable system Rose says Friendly fighters The filter features a unique biological layer which allows organisms within the foam to attack foreign pathogens as water passes through Growth of friendly microorganisms in this layer enables the filter to become more efficient at reducing protozoa bacteria and viruses over time The newly discovered material also has other advantages such as ease of use maintenance and affordability

    Original URL path: http://www.futurity.org/foam-filter-drinking-water-910472/ (2016-02-12)
    Open archived version from archive

  • Why some 'green' buildings have stinky water - Futurity
    refused to take showers in the PEX plumbed bathroom because they were concerned about their health Credit Jed Sullivan Flickr Why some green buildings have stinky water Purdue University right Original Study Posted by Emil Venere Purdue on October 20 2014 You are free to share this article under the Attribution 4 0 International license Cost and environmental impact are two reasons to install plastic pipes in buildings but research shows they can put chemicals in drinking water and cause unpleasant odors Buildings are being plumbed with many types of plastic drinking water pipes These include crosslinked polyethylene PEX high density polyethylene HDPE polyvinylchloride PVC chlorinated PVC cPVC and polypropylene PP pipes says Andrew Whelton an assistant professor of civil engineering in Purdue University s Lyles School of Civil Engineering and Division of Environmental and Ecological Engineering Related Articles On Futurity Duke University Time to rethink girls only approach to HPV vaccine University of California Santa Barbara BMI is wrong Millions of healthy Americans labeled obese University of Southampton Aspirin cuts some cancer risk 60 percent Plastic pipes are generally less expensive lighter and easier to install than metal pipes A 2012 comparison showed PEX pipe was the least expensive among plastic pipes costing just 43 cents per foot compared to the most expensive metal copper pipe at 2 55 per foot Thousands of dollars can be saved during construction by installing plastic instead of metal plumbing systems and proponents assert plastic pipes require less energy to manufacture generating less carbon dioxide compared to metal pipes ostensibly making them a good fit for green buildings Little is known about the degree to which plastic pipes sold in the US affect drinking water quality says Whelton who will prsent the findings at the 2014 US Green Building Council s Greenbuild International Conference Exposition on Friday in New Orleans Six kinds of PEX pipe Some testing results appear online in September in the journal Water Research There the researchers describe drinking water impacts caused by six brands of PEX pipes available in the United States For the Water Research study researchers tested drinking water from a PEX plumbing system in a net zero energy building in Maryland six months after the system had been installed The testing revealed the presence of 11 chemicals that were PEX pipe ingredients and ingredient degradation products Research with PEX pipes in the laboratory also showed that six brands caused drinking water to exceed the US Environmental Protection Agency s maximum recommended drinking water odor limit Whelton says The US EPA s maximum drinking water odor limit is a threshold odor number of 3 or 3 TON Compliance is voluntary because the standard is based on aesthetic not health considerations Chlorine in the water Odor and chemical levels were monitored with and without chlorine treatment over a 30 day period for the six pipe brands Chlorine the most popular disinfectant chemical used in the United States protects drinking water from disease causing organisms as it travels to

    Original URL path: http://www.futurity.org/plumping-plastic-pipes-786932/ (2016-02-12)
    Open archived version from archive

  • Cement's 'genome' could make concrete greener - Futurity
    Sheffield University of Southampton University of Southern California University of Texas at Austin University of Toronto University of Virginia University of Warwick University of Washington University of York Vanderbilt University Washington University in St Louis Yale University Earth and Environment Related Articles Genome reveals greener ways to kill termites Save the polar bears Save the humans In warm oceans phytoplankton may thrive near poles Share This Article facebook twitter Action googleplus Google linkedin LinkedIn pinterest Pinterest reddit Reddit Stumbleupon mail Email Print The heart of concrete is C S H that s calcium silicate and hydrate water There are impurities but C S H is the key binder that holds everything together so that s what we focused on says Rouzbeh Shahsavari Credit Susan Brzozowski Flickr Cement s genome could make concrete greener Rice University right Original Study Posted by Mike Williams Rice on September 29 2014 You are free to share this article under the Attribution 4 0 International license By paying attention to concrete s atomic structure scientists say they could make it better and more environmentally friendly The team of researchers has created computational models to help concrete manufacturers fine tune mixes for general applications Materials scientist Rouzbeh Shahsavari says the team created what it considers a game changing strategy for an industry that often operates under the radar but is still the third largest source of carbon dioxide released to the atmosphere The annual worldwide production of more than 20 billion tons of concrete contributes 5 to 10 percent of carbon dioxide according to the researchers only transportation and energy surpass it as producers of the greenhouse gas There are benefits to be gained for the environment and for construction by optimizing the process says Shahsavari an assistant professor of civil and environmental engineering at Rice University Calcium silicate hydrate The heart of concrete is C S H that s calcium silicate and hydrate water There are impurities but C S H is the key binder that holds everything together so that s what we focused on In a nutshell we tried to decode the phases of C S H across different chemistries thereby improving the mechanical properties of concrete in a material way Related Articles On Futurity Georgia Institute of Technology Streaks are strongest evidence yet of Mars water University of California Berkeley Nanolasers grown on silicon University of Toronto Super efficient OLEDs on flexible plastic The years long study involved analysis of defect attributes for concrete Shahsavari says One was in the ratio of calcium to silicon the basic elements of concrete Another looked at the topology of atomic level structures particularly the location of defects and the bonds between medium range calcium and oxygen or silicon and oxygen atoms that is atoms that aren t directly connected but still influence each other The combination of these defects gives concrete its properties he says Shahsavari notes a previous work by the team defined average chemistries of cement hydrates Cement is the component in concrete

    Original URL path: http://www.futurity.org/concrete-carbon-emissions-772982/ (2016-02-12)
    Open archived version from archive



  •