News tagged with chlorofluorocarbons

Video: Keeping cool without killing the planet

We've had the delightful benefits of air conditioning and refrigeration for more than a hundred years now. In the early days, dangerous chemicals were used as refrigerants. Eventually, chlorofluorocarbons ...

dateJun 11, 2015 in Other
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Is the ozone layer on the road to recovery?

(Phys.org)—Satellites show that the recent ozone hole over Antarctica was the smallest seen in the past decade. Long-term observations also reveal that Earth's ozone has been strengthening following international ...

dateFeb 10, 2013 in Earth Sciences
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A material that most liquids won't wet

(Phys.org)—A nanoscale coating that's at least 95 percent air repels the broadest range of liquids of any material in its class, causing them to bounce off the treated surface, according to the University ...

dateJan 16, 2013 in Nanomaterials
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Carbon dioxide controls Earth's temperature

(PhysOrg.com) -- Water vapor and clouds are the major contributors to Earth's greenhouse effect, but a new atmosphere-ocean climate modeling study shows that the planet's temperature ultimately depends on ...

dateOct 14, 2010 in Earth Sciences
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Quantum physicists turn waste heat into power

(PhysOrg.com) -- University of Arizona physicists have discovered a new way of harvesting waste heat and turning it into electrical power. Taking advantage of quantum effects, the technology holds great promise ...

dateSep 24, 2010 in Nanophysics
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US supports reducing climate-warming gases

(AP) -- The Obama administration called hydrofluorocarbons widely used in refrigerators and air conditioners "a very significant" threat to climate change Monday, and expressed a preference for drastically ...

dateMay 04, 2009 in Environment
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US wants to move on climate change

(AP) -- The Obama administration, in a major environmental policy shift, is leaning toward asking 195 nations that ratified the U.N. ozone treaty to enact mandatory reductions in hydrofluorocarbons, according ...

dateApr 30, 2009 in Environment
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