Sentences with phrase «made aerosol particles»

Scientists believe that the combination of growing quantities of man - made aerosol particles in the atmosphere and more moisture have caused the cloud cover to thicken.

Not exact matches

Their stickiness makes it hard to get them through an inlet into a measuring device, but these compounds may play a significant role in the formation and alteration of aerosols, tiny airborne particles that can contribute to smog or to the nucleation of raindrops or ice crystals, affecting the Earth's climate.

Schneider coauthored a 1971 article in the journal Science about atmospheric aerosols — floating particles of soil dust, volcanic ash, and human - made pollutants.

Aerosols are both natural and man - made, and include windblown desert dust, sea salt, smoke from fires, sulfurous particles from volcanic eruptions, and particles from fossil fuel combustion.

These particles pose health risks to populations, especially to the medically vulnerable, By infusing CATS data directly into aerosol models, data from CATS can make a difference in tracking and responding to impacts of similar events in the future.

Although the seven - year data record is too short to make conclusions about long - term trends, it is an important step toward understanding how dust and other windborne particles, or aerosols, behave as they move across the ocean.

What's more, according to Tim Bates of the National Oceanic and Atmospheric Administration (NOAA), «there's a very wide range of sizes [for aerosol particles], and the effect that the particle is going to have on climate is going to be very dependent on its size, which makes it trickier.»

«Particles of any kind, even much smaller than the wavelength of visible light, will, as a rule, make the sky brighter but at the expense of its purity of color,» Bohren says, noting that the effect is more pronounced when there is a high concentration of large aerosols.

A large portion of secondary organic aerosols - tiny particles in the air we breathe that contribute to cloud formation and precipitation - arise from a combination of man - made pollution and molecules given off by plant matter.

When isoprene is in the presence of human - made sulfate particles it transforms into atmospheric organic aerosol particles.

Volcanic events and some types of human - made pollution, both of which inject sunlight - reflecting aerosols (i.e., tiny particles) into the atmosphere, lower temperature and are examples of forcings that drive decreases in temperature.

Hansen's group estimates that aerosols probably counteract about half of the warming produced by man - made greenhouse gases, but he cautions that better measurements of these elusive particles are needed.

Scientists found that emissions of tiny air particles from human - made sources — known as anthropogenic aerosols — were the cause.

Ambient submicron particle measurements were made with a high - resolution time - of - flight aerosol mass spectrometer (AMS) at the north campus of the University of California Irvine, which is located in the SoCAB approximately 5 miles inland from the Pacific Ocean.

The remainder is made up with the other minor greenhouse gases, ozone and methane for instance, and a small amount from particles in the air (dust and other «aerosols»).

This is an old story: Rasool and (Steve) Schneider published a paper in Science on that day noting that if human - made aerosols (small particles in the air) increased by a factor of four, other things being equal, they could cause massive global cooling.

With regard to the actual content of the press release quoted, it isn't clear if the process they report on (aerosol particles, particularly organic chemicals, getting smaller over time) makes them better or worse at forming clouds and their other atmosphere cooling functions.

Turner's work, in particular, which often depicts brightly colored sunsets and emphasized natural light, can be used to roughly estimate aerosol optical depth — that is, the amount of particles like dust, volcanic ash, smoke and sea salts in the atmosphere — at the time the painting was made.

I'll admit that dimethysulphide and iodocompounds are poor reaches for straws, I don't know who dreamed that up, more emphasis should be made on natural mineral, sea - salt, and gas - to - particle aerosols)-- Very poor oversimplified cloud modeling (equating all clouds to a single W / m2 forcing parameter)-- Accuracy of model predictions (they present a juicy graph of a 1988 model and observed temps.

For example, the harmful haze you see and breathe in big cities like Los Angeles or Philadelphia is made of «aerosols,» a name for various kinds of tiny particles in the atmosphere.

As this happens, we would probably want a global fleet of aircraft that spray sulfate particles into the lower atmosphere to make up for the loss of aerosols once produced by coal plants.