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Keyword: cfc

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  • Quantum computer that 'computes without running' sets efficiency record

    09/01/2015 10:33:43 PM PDT · by LibWhacker · 29 replies
    PhysOrg ^ | 8/31/15 | Lisa Zyga
    (—Due to quantum effects, it's possible to build a quantum computer that computes without running—or as the scientists explain, "the result of a computation may be learned without actually running the computer." So far, however, the efficiency of this process, which is called counterfactual computation (CFC), has had an upper limit of 50%, limiting its practical applications. Now in a new paper, scientists have experimentally demonstrated a slightly different version called a "generalized CFC" that has an efficiency of 85% with the potential to reach 100%. This improvement opens the doors to realizing a much greater variety of applications, such...
  • NASA | A Story of Ozone: The Earth’s Natural Sunscreen

    04/09/2015 10:38:56 AM PDT · by Rodamala · 18 replies
    NASA Goddard ^ | Apr 6, 2015 | NASA Goddard
    In this talk, Dr. Paul Newman tells the story of how scientists and policy-makers safeguarded the Earth’s ozone layer and the world we avoided by by regulating chlorofluorocarbons (CFCs) . Back in the 60s, we used chlorofluorocarbons, a chlorine-containing chemical, in everything from hairsprays and deodorants to foam products and air conditioners. But in 1974, chemists Sherwood Rowland and Mario Molina published a paper claiming CFCs were destroying the ozone layer. The Molina-Rowland paper launched a debate in the scientific community that ultimately led to the halls of the United Nations. Today, more than 191 countries have signed the Montreal...
  • Obama seeks faster phaseout of popular coolant in effort to curb greenhouse gases

    09/16/2014 4:44:42 AM PDT · by MikeinMotley · 54 replies
    wapo ^ | September 15, 2014 | Joby Warrick
    The Obama administration is preparing to introduce major steps to phase out production of a popular chemical coolant used in refrigerators and air conditioners, citing growing evidence that the substance is contributing to the warming of the planet. The White House will announce on Tuesday a series of voluntary commitments by some of the country’s largest chemical firms and retailers to move rapidly away from R-134a and similar compounds used in nearly every office, home and automobile in the country, according to current and former U.S. officials familiar with the effort.
  • UEFA rule Atletico's on-loan Chelsea 'keeper can play against the Blues in UCL semis

    04/11/2014 5:18:24 AM PDT · by kevkrom · 4 replies
    ProSoccerTalk ^ | 2014-04-11 | Jon Prince-Wright
    (link only)
  • Mysterious new man-made gases pose threat to ozone layer

    03/10/2014 9:43:09 AM PDT · by NormsRevenge · 38 replies
    BBC News ^ | 3/9/14 | Matt McGrath
    Scientists have identified four new man-made gases that are contributing to the depletion of the ozone layer. Two of the gases are accumulating at a rate that is causing concern among researchers. Worries over the growing ozone hole have seen the production of chlorofluorocarbon (CFC) gases restricted since the mid 1980s. But the precise origin of these new, similar substances remains a mystery, say scientists. Lying in the atmosphere, between 15 and 30km above the surface of the Earth, the ozone layer plays a critical role in blocking harmful UV rays, which cause cancers in humans and reproductive problems in...
  • Ozone Hole Won't Heal Until 2070, NASA Finds

    12/14/2013 10:38:19 AM PST · by facedown · 54 replies
    Live Science via Yahoo News ^ | December 12, 2013 | Tia Ghose
    SAN FRANCISCO — The banning of ozone-depleting chemicals hasn't yet caused detectable improvements in the Antarctic ozone hole, new research suggests. Instead, changes in the South Pole's ozone hole from year-to-year are likely the result of natural variations in wind patterns, researchers said here Wednesday (Dec. 11) in a press conference at the annual meeting of the American Geophysical Union. The findings suggest that measuring the total size of the ozone hole says little about ozone depletion, and that it's misleading to use the hole's extent alone to measure environmental progress.
  • Ozone chemicals ban linked to global warming ‘pause’ (new propaganda)

    11/11/2013 6:35:59 AM PST · by Olog-hai · 13 replies
    BBC News ^ | 10 November 2013 | Last updated at 13:49 ET | Matt McGrath
    A new study suggests that the ban on ozone depleting chemicals may have also impacted the rise in global temperatures. CFC gases were responsible for a massive hole in the ozone layer, but they also had a powerful greenhouse effect. The authors link a ban on their use to a “pause” or slowdown in temperature increases since the mid 1990s. The research is published in the journal Nature Geoscience. The subject of a hiatus or standstill in global temperatures rises since 1998 has been the subject of intense debate among scientists, and it has been used as a key argument...
  • China, U.S. Make Climate Deal

    06/10/2013 1:31:07 PM PDT · by nickcarraway · 8 replies
    You probably missed some pretty big news over the weekend: China and the United States agreed to phase out the use of hydrofluorocarbons, or HFCs. If you’re old enough to remember the ozone scare, that was mostly caused by chlorofluorocarbons, or CFCs. A 1987 agreement banned those, giving rise to HFCs as a replacement, which don’t cause an ozone hole but do heat up the atmosphere a lot. Why is this a big deal? On its own terms, it will do a lot to restrain global warming, eliminating perhaps half a degree Celsius of expected warming over a century. But...
  • Ozone hole above the Arctic has actually been caused by COLD Weather

    01/29/2012 9:09:19 PM PST · by smokingfrog · 22 replies · 1+ views ^ | 20 Jan 2012 | Rob Waugh
    The first ozone hole above the North Pole has been aggravated by extraordinarily cold winter temperatures, say scientists. Cooling of the ozone layer enhances the effect of ozone-destroying substances such as chlorofluorocarbons - CFC. A repeated ozone hole above the Arctic is to be expected, say scientists from the KIT Institute of Meteorology and Climate Research. About a year ago, the scientists detected that ozone degradation above the Arctic for the first time reached an extent comparable to that of the ozone hole above the South Pole. At a level of around 13 miles above the ground, 80 per cent...
  • - Federal employees can make tax deductible gun rights gifts 'till Jan. 17th

    11/29/2010 7:34:14 PM PST · by majstoll ^ | November 29, 2010 | Mike Stollenwerk
    “Recognizing the needs are greater than ever, OPM granted the Combined Federal Campaign of the National Capital Area . . . an extension of the campaign solicitation period to January 17, 2011. Federal employees can pledge funds to . . . [m]ore than 4,000 local, national and international charities.” What is the Combined Federal Campaign (CFC)? It’s the federal government’s massive annual effort to encourage federal employees and military members to make payroll deductions to certain charitable organizations. “As always, CFC donations are tax deductible.” . . .
  • Deadly silence at the DMZ

    05/28/2010 11:36:19 PM PDT · by ErnstStavroBlofeld · 7 replies · 716+ views
    Asia Times ^ | 5/29/2010 | Donald Kirk
    In the duel between North and South Korea, the question now is who will pull the trigger first? The answer may be neither, but don't count on it. The dueling now focuses on two quite different flashpoints. The first is the West or Yellow Sea, where North Korea has vowed to open fire against any South Korean vessel intruding in its waters. One issue there is how to define which waters are North Korean. The North refuses to recognize the Northern Limit Line, set by the United Nations Command after the Korean War (1950-1953) and challenged by North Korea in...
  • US Offers to Sell Command Bunker to S. Korea

    03/21/2010 11:09:41 PM PDT · by ErnstStavroBlofeld · 15 replies · 531+ views
    Korea Times ^ | 3/21/2010 | Jung Sung-ki
    The top American military officer here has proposed that South Korea buy a key U.S. underground command bunker on the outskirts of Seoul, as his troops will move to an area south of the Han River, relinquishing wartime operational control to Korean commanders, a source at the Combined Forces Command (CFC) said Sunday. CFC Commander Gen. Walter Sharp, who concurrently heads the 28,000-strong U.S. Forces Korea (USFK), made the proposal to South Korea during the Key Resolve command-post exercise that ended Thursday, the source told The Korea Times. The Ministry of National Defense is reviewing the offer but has yet...
  • Five Decades Of Cooling Ahead

    12/24/2009 3:44:23 PM PST · by raptor22 · 86 replies · 4,041+ views ^ | December 24, 2009 | INVESTOR'S BUSINESS DAILY staff
    Climate Change: A peer-reviewed study by a respected Canadian physicist blames the interplay of cosmic rays and chlorofluorocarbons for 20th-century warming. The CFCs are now gone, and so is warming — perhaps for the next 50 years. Much of the nation got a white Christmas this year, some in unprecedented quantities. A record-breaking storm deposited 12 to 30 inches of snow in Virginia, Maryland and Washington, D.C. Many places set records for the most snow in a single December day as more than 50% of the U.S. was covered by the white stuff. Scientists (and here we use the word...
  • Full list of every Cash for Clunkers trade in

    09/29/2009 3:12:26 PM PDT · by nascarnation · 12 replies · 1,025+ views
    Jalopnik ^ | 9/29/2009 | Matt Hardigree
    the list of all 690,114 trade-ins.
  • Some Surprised by 'Clunker' Tax

    08/25/2009 7:17:32 AM PDT · by DadOfFive · 35 replies · 1,862+ views
    Some Surprised By 'Clunker' Tax Posts The Cash For Clunkers program is adding to the activity at treasurers' offices all around South Dakota. First, people were asking for proof of ownership, so they could show they owned their vehicle for a full year, allowing them to cash it in. Now, they'll be returning to register their new vehicle. And when they do, new owners need to bring every bit of paperwork provided to them by their dealer. "That means they need their title, their damage disclosure, their bill of sale and the dealers have 30 days to get that to...
  • The Space Shuttle Tragedy's Green Connection

    08/06/2003 9:44:00 AM PDT · by Maria S · 11 replies · 703+ views ^ | August 6, 2003 | Jon Berlau
    The National Aeronautics and Space Administration, better known as NASA, said in July that it had found the "smoking gun" that caused the space shuttle Columbia to break apart as it re-entered the Earth's atmosphere on Feb. 1: a piece of foam that had peeled off the external fuel tank and struck the shuttle's wing 1 minute and 22 seconds after liftoff. But many experts looking at the tragedy that killed seven astronauts say there is a deeper cause. They say that the metaphorical smoking gun should be painted green. Because of demands that the agency help to front for...
  • Spending billions on a non-existent problem

    04/27/2009 6:03:28 PM PDT · by Scanian · 3 replies · 449+ views
    Canada Free Press ^ | April 27, 2009 | Dr. Tim Ball
    From error to error one discovers the entire truth.” Sigmund Freud. The Issue The US Congress is currently discussing the Obama climate change strategy and Cap and Trade. One part of the plan says, “Implement an economy-wide cap-and-trade program to reduce greenhouse gas emissions 80 percent by 2050.” The term “greenhouse gas emissions” is either deliberately misleading or indicates complete ignorance of the science, or both. What they really mean is CO2, yet it is less than 4% of greenhouse gases and the human portion a fraction of that. Why do they want it reduced? It is not a pollutant...
  • Bulbs Save Energy By Not Working

    03/28/2009 8:59:19 AM PDT · by AT7Saluki · 116 replies · 2,713+ views
    News and Observer ^ | 3/28/09 | Leora Broydo Vestel
    It sounds like such a simple thing: Buy some new light bulbs, screw them in, save the planet. But a lot of people are finding the new compact fluorescent bulbs anything but simple. Consumers who are trying them say they sometimes fail to work, or wear out early. At best, people discover that using the bulbs requires learning a long list of dos and don’ts. Take the case of Karen Zuercher and her husband, in San Francisco. Inspired by watching the movie “An Inconvenient Truth,” they decided to swap nearly every incandescent bulb in their home for energy-saving compact fluorescents....
  • Asthma Sufferers Victimized by UN Ozone Madness

    01/20/2009 9:53:05 AM PST · by Coleus · 21 replies · 1,343+ views
    thenewamerican ^ | William F. Jasper
    Beginning January 1, 2009, millions of asthma sufferers will no longer legally be able to obtain the low-cost albuterol inhalers that enable them to breathe. The inhalers have been outlawed by FDA regulations under the UN Montreal Protocol on Ozone Deplation.  Few things are more terrifying than being smothered, yet millions of Americans who suffer from asthma and other respiratory ailments experience this sensation on a regular basis. For many it is not just an unpleasant and debilitating experience, but a life-threatening one. For decades, these sufferers have received emergency relief from albuterol metered-dose inhalers (MDIs). These traditional MDIs, however,...
  • Science slows global warming!

    09/07/2008 12:46:03 AM PDT · by neverdem · 26 replies · 432+ views
    American Thinker ^ | September 07, 2008 | James Lewis
    Yes, kids, science is a wonderful thing. But not nearly as wonderful as climate modeling, which can perform supernatural miracles. Honest! Climate modeling can raise the level of the oceans (even without Obama's intervention), it can burn up the planet a hundred years from now, and Shazzam! -- the models can save us again -- all without leaving your video games, and without the benefit of the real-world data that you need for boring old regular science. At least, that's what Nature -- the oldest science journal in the world, going back to Isaac Newton -- now claims. According to...