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News tagged with aerosol

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

Cosmic meddling with the clouds by seven-day magic

Billions of tonnes of water droplets vanish from the atmosphere, as if by magic, in events that reveal in detail how the Sun and the stars control our everyday clouds. Researchers of the National Space Institute in the Technical ...

Space & Earth / Earth Sciences

created Aug 01, 2009 | popularity 4.8 / 5 (21) | comments 9

Aerosols May Drive a Significant Portion of Arctic Warming

(PhysOrg.com) -- Though greenhouse gases are invariably at the center of discussions about global climate change, new NASA research suggests that much of the atmospheric warming observed in the Arctic since ...

Space & Earth / Earth Sciences

created Apr 08, 2009 | popularity 4.3 / 5 (19) | comments 15

NOAA study suggests aerosols might be inhibiting global warming

(PhysOrg.com) -- A new study led by the U.S, National Oceanic and Atmospheric Administration (NOAA) shows that tiny particles that make their way all the way up into the stratosphere may be offsetting a global ...

Space & Earth / Earth Sciences

created Jul 22, 2011 | popularity 4.4 / 5 (17) | comments 28 | with audio podcast report

The aerosols conundrum: Research shows that aerosols not only cool, but also heat the planet

Just how much warmer Earth will become as a result of greenhouse-gas emissions — and how much it has warmed since preindustrial times — is much debated. In a 2007 report, the Intergovernmental Panel on Climate ...

Space & Earth / Earth Sciences

created Jul 09, 2010 | popularity 4.9 / 5 (13) | comments 104 | with audio podcast

Plants play larger role than thought in cleaning up air pollution

(PhysOrg.com) -- Vegetation plays an unexpectedly large role in cleansing the atmosphere, a new study finds. The research, led by scientists at the National Center for Atmospheric Research (NCAR) in Boulder, ...

Space & Earth / Environment

created Oct 21, 2010 | popularity 4.9 / 5 (10) | comments 4 | with audio podcast

British team set to field test gigantic balloon and water hose geo-engineering experiment

(PhysOrg.com) -- In what to some might seem almost ludicrous, (think Dr. Stranglove,) a British team of geo-engineers are set to launch a giant balloon a half mile into the sky pulling with it a water hose ...

Space & Earth / Earth Sciences

created Sep 02, 2011 | popularity 2.8 / 5 (17) | comments 75 | with audio podcast weblog

Sea levels will continue to rise for 500 years: study

Rising sea levels in the coming centuries is perhaps one of the most catastrophic consequences of rising temperatures. Massive economic costs, social consequences and forced migrations could result from global ...

Space & Earth / Earth Sciences

created Oct 17, 2011 | popularity 4 / 5 (12) | comments 9

Warming of two degrees inevitable over Canada: study

(PhysOrg.com) -- Even if zero emissions of greenhouse gases were to be achieved, the world’s temperature would continue to rise by about a quarter of a degree over a decade. That’s a best-case ...

Space & Earth / Earth Sciences

created Mar 04, 2012 | popularity 4 / 5 (12) | comments 15

New computer model advances climate change research

Scientists can now study climate change in far more detail with powerful new computer software released by the National Center for Atmospheric Research (NCAR).

Space & Earth / Earth Sciences

created Aug 18, 2010 | popularity 3.4 / 5 (14) | comments 12

Black carbon a significant factor in melting of Himalayan glaciers

The fact that glaciers in the Himalayan mountains are thinning is not disputed. However, few researchers have attempted to rigorously examine and quantify the causes. Lawrence Berkeley National Laboratory ...

Space & Earth / Earth Sciences

created Feb 03, 2010 | popularity 4.4 / 5 (10) | comments 5 | with audio podcast

Missing link of cloud formation

The discovery of an unknown hitherto chemical compound in the atmosphere may help to explain how and when clouds are formed. The discovery of the so called dihydroxyepoxides (an aerosol-precursor), is reported ...

Chemistry / Analytical Chemistry

created Aug 11, 2009 | popularity 4.1 / 5 (10) | comments 0

Sensitive side

(PhysOrg.com) -- A little extra carbon dioxide in the air may, unfortunately, go further towards warming Earth than previously thought. A team of British and U.S. researchers have uncovered evidence [1] that ...

Space & Earth / Earth Sciences

created May 05, 2010 | popularity 4.1 / 5 (10) | comments 6 | with audio podcast

Long term North Atlantic surface temperature fluctuations linked to aerosols

(PhysOrg.com) -- Manmade pollution doesn’t always cause atmospheric warming, a group of researchers from Britain’s Met Office Hadley Centre, write in their paper published in the journal Nature, someti ...

Space & Earth / Earth Sciences

created Apr 05, 2012 | popularity 4.6 / 5 (9) | comments 26 | with audio podcast report

New study may answer questions about enigmatic Little Ice Age

A new University of Colorado Boulder-led study appears to answer contentious questions about the onset and cause of Earth's Little Ice Age, a period of cooling temperatures that began after the Middle Ages ...

Space & Earth / Earth Sciences

created Jan 30, 2012 | popularity 4.8 / 5 (8) | comments 9 | with audio podcast

Aerosol

Technically, an aerosol is a suspension of fine solid particles or liquid droplets in a gas. Examples are clouds, and air pollution such as smog and smoke. In general conversation, aerosol usually refers to an aerosol spray can or the output of such a can. The word aerosol derives from the fact that matter "floating" in air is a suspension (a mixture in which solid or liquid or combined solid–liquid particles are suspended in a fluid). To differentiate suspensions from true solutions, the term sol evolved—originally meant to cover dispersions of tiny (sub-microscopic) particles in a liquid. With studies of dispersions in air, the term aerosol evolved and now embraces both liquid droplets, solid particles, and combinations of these. The Earth atmosphere contains aerosols of various types and concentrations, including quantities of:

By far the most common aerosols in the atmosphere are clouds, which normally consist of suspensions of water droplets or ice particles of greater or lesser density.

Aerosols can be found in urban Ecosystems in various forms, for example:

For more information about Aerosol, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.