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News tagged with gas vapor

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 ...

Space & Earth / Earth Sciences

created Oct 14, 2010 | popularity 3.8 / 5 (52) | comments 327 | with audio podcast

Global warming likely to be amplified by slow changes to Earth systems

Researchers studying a period of high carbon dioxide levels and warm climate several million years ago have concluded that slow changes such as melting ice sheets amplified the initial warming caused by greenhouse ...

Space & Earth / Earth Sciences

created Dec 20, 2009 | popularity 2.8 / 5 (49) | comments 59

Technology breakthrough fuels laptops and phones, recharges scientist's 60-year career

How does a scientist fuel his enthusiasm for chemistry after 60 years? By discovering a new energy source, of course.

Technology / Energy & Green Tech

created Feb 17, 2011 | popularity 4.7 / 5 (21) | comments 13 | with audio podcast

Trees invading warming Arctic will cause warming over entire region, study shows

(PhysOrg.com) -- Contrary to scientists' predictions that, as the Earth warms, the movement of trees into the Arctic will have only a local warming effect, University of California, Berkeley, scientists modeling ...

Space & Earth / Earth Sciences

created Jan 12, 2010 | popularity 3.5 / 5 (27) | comments 47 | with audio podcast

Stratospheric Water Vapor is a Global Warming Wild Card

A 10 percent drop in water vapor ten miles above Earth’s surface has had a big impact on global warming, say researchers in a study published online January 28 in the journal Science. The findings might help e ...

Space & Earth / Earth Sciences

created Jan 28, 2010 | popularity 4.3 / 5 (21) | comments 29 | with audio podcast

Climate models confirm more moisture in atmosphere attributed to humans

(PhysOrg.com) -- When it comes to using climate models to assess the causes of the increased amount of moisture in the atmosphere, it doesn't much matter if one model is better than the other.

Space & Earth / Earth Sciences

created Aug 10, 2009 | popularity 3.1 / 5 (22) | comments 64

Plastic laser detects tiny amounts of explosives

(PhysOrg.com) -- Detecting hidden explosives is a difficult task but now researchers in the UK have developed a completely new way of detecting them, with a laser sensor capable of detecting molecules of explosives ...

Physics / Condensed Matter

created Jun 08, 2010 | popularity 5 / 5 (11) | comments 1 | with audio podcast report

Graphene: New electronics material closer to commercial reality

(PhysOrg.com) -- Researchers have developed a method for creating single-crystal arrays of a material called graphene, an advance that opens up the possibility of a replacement for silicon in high-performance ...

Nanotechnology / Nanomaterials

created May 26, 2011 | popularity 4.8 / 5 (8) | comments 7 | with audio podcast

Graphene organic photovoltaics, or, will joggers' t-shirts someday power their cell phones?

A University of Southern California team has produced flexible transparent carbon atom films that the researchers say have great potential for a new breed of solar cells.

Nanotechnology / Nanomaterials

created Jul 23, 2010 | popularity 5 / 5 (7) | comments 1 | with audio podcast

Spacecraft flew through 'snowstorm' on encounter with comet Hartley 2

On its recent trip by comet Hartley 2, the Deep Impact spacecraft took the first pictures of, and flew through, a storm of fluffy particles of water ice being spewed out by carbon dioxide jets coming from ...

Space & Earth / Space Exploration

created Nov 18, 2010 | popularity 5 / 5 (7) | comments 0 | with audio podcast

Cyclones spurt water into the stratosphere, feeding global warming

Scientists at Harvard University have found that tropical cyclones readily inject ice far into the stratosphere, possibly feeding global warming.

Space & Earth / Earth Sciences

created Apr 20, 2009 | popularity 3.6 / 5 (7) | comments 9

An Intergalactic Weather Map

(PhysOrg.com) -- This composite image shows an intergalactic "weather map" around the elliptical galaxy NGC 5813, the dominant central galaxy in a galaxy group located about 105 million light years away from ...

Space & Earth / Astronomy

created Dec 08, 2010 | popularity 5 / 5 (5) | comments 0

Explained: Climate sensitivity

Climate sensitivity is the term used by the Intergovernmental Panel on Climate Change (IPCC) to express the relationship between the human-caused emissions that add to the Earth's greenhouse effect -- carbon ...

Space & Earth / Earth Sciences

created Mar 19, 2010 | popularity 3 / 5 (8) | comments 4

NASA Outlines Recent Breakthroughs in Greenhouse Gas Research (w/ Video)

(PhysOrg.com) -- Researchers studying carbon dioxide, a leading greenhouse gas and a key driver of global climate change, now have a new tool at their disposal: daily global measurements of carbon dioxide ...

Space & Earth / Earth Sciences

created Dec 15, 2009 | popularity 3.3 / 5 (7) | comments 2

Breath or urine analysis may detect cancer, diabetes

(PhysOrg.com) -- A future sensor may take away a patient's breath while simultaneously determining whether the patient has breast cancer, lung cancer, diabetes or asthma. A University of Missouri researcher is developing ...

Chemistry / Analytical Chemistry

created Mar 10, 2009 | popularity 5 / 5 (4) | comments 1