On March 20, Iceland's Eyjafjallajokull volcano woke from its nearly 200-year slumber to change the way the world viewed volcanoes forever. Bringing almost all transatlantic air travel to a ...
Jun 16, 2010
5 / 5 (6)
3
|
A lot of large particles of dust and pollen in the atmosphere may make your nose twitch, but they can lead directly to greater precipitation in clouds, Colorado State University atmospheric scientists have ...
Jun 07, 2010
3 / 5 (2)
1
|
The large number of tiny organic aerosols floating in the atmosphere - emitted from tailpipes and trees alike - share enough common characteristics as a group that scientists can generalize their makeup and ...
May 26, 2010
2.3 / 5 (3)
0
|
(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 ...
May 05, 2010
4.1 / 5 (10)
6
|
(PhysOrg.com) -- Two very different forms of climate-influencing particles do not behave as expected, according to scientists at Pacific Northwest National Laboratory and Imre Consulting. The team's measurements ...
Apr 05, 2010
4.3 / 5 (7)
7
|
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 ...
Feb 03, 2010
4.4 / 5 (10)
5
|
It's no secret that the emissions leaving a car tailpipe or factory smokestack affect climate and air quality. Even trees release chemicals that influence the atmosphere. But until now, scientists have struggled to know where ...
Dec 10, 2009
3.9 / 5 (7)
1
(PhysOrg.com) -- For decades, climate scientists have worked to identify and measure key substances -- notably greenhouse gases and aerosol particles -- that affect Earth’s climate. And they’ve been aided ...
Oct 29, 2009
3.2 / 5 (5)
0
(PhysOrg.com) -- "Blue haze," a common occurrence that appears over heavily forested areas around the world, is formed by natural emissions of chemicals, but human activities can worsen it to the point of affecting the world's ...
Oct 06, 2009
1.7 / 5 (3)
0
(PhysOrg.com) -- Aircraft emissions can affect the properties of cirrus clouds, contributing to climate change. This was a key finding from PNNL scientist Dr. Xiaohong Liu and his colleagues from a recent ...
Sep 28, 2009
2.9 / 5 (9)
2
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 ...
Aug 11, 2009
4.1 / 5 (10)
0
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 ...
Aug 01, 2009
4.8 / 5 (22)
9
Particulate pollution thought to be holding climate change in check by reflecting sunlight instead enhances warming when combined with airborne soot, a new study has found.
Jun 29, 2009
3.4 / 5 (9)
3
Particles cool down the climate, but to which extent? This has remained an unanswered question for scientists. A new article in Science by Gunnar Myhre at CICERO, Norway, brings the scientific community a step closer to sol ...
Jun 19, 2009
4 / 5 (5)
2
A new article in the journal Risk Analysis assessed various ways in which aerosol transmission of the flu, a central mode of diffusion which involves breathing droplets in the air, can be reduced. Results show that face p ...
May 20, 2009
not rated yet
0
