Sentences with phrase «aerosol pollution»

"Aerosol pollution" refers to the presence of harmful particles or droplets suspended in the air, usually caused by human activities or natural sources. These particles can be smoke, dust, chemicals, or other pollution, and they can have negative effects on the environment, human health, and air quality. Full definition
So when you mix the two kinds of aerosol pollution up in the Asian brown cloud, one would expect climate effects to even out.
But as nations all over the world attempt to reduce aerosol pollution in the air, researchers of both studies suggest the world will see more rapid warming.
For example, there are conflicting reports regarding the impact of reduced aerosol pollution on heat island intensity.
The simulations indicated that about a third of the sea ice increase was due to natural processes, while two - thirds was due to aerosol pollution from human, or anthropogenic, sources.
The net effect of aerosol pollution on global temperature is not well established.
But solar output fell, while volcanic activity and aerosol pollution rose.
In areas where aerosol pollution masks the ground from direct sunlight, decreases in evaporation reduce the overall moisture supply to the atmosphere.
The team showed that human activities common in large cities, such as vehicle exhaust and municipal trash burning, are major sources of organic aerosol pollution.
Scientists believe that if human activity is constantly pouring aerosol pollution into the air, then the strange cooling effect would probably be sustained.
There are also strong reasons to reduce aerosol pollution, which is associated with health problems and reduced atmospheric visibility.
Bauer, S.E., K. Tsigaridis, and R.L. Miller, 2016: Significant atmospheric aerosol pollution caused by world food cultivation.
When Rajan Chakrabarty, Ph.D., an assistant research professor at the Desert Research Institute, began looking into the regional inventories of human - produced sources of carbon aerosol pollution in South Asia, considered to be a climate change hot spot, he knew something was missing.
So the cooling back then wasn't only down to increased industrial aerosol pollution blocking / scattering some of the incoming sunlight, the IPO also played a part.
Aerosol pollution also affects the formation of clouds, which are seeded with dust particles in the atmosphere.
There, he co-authored an article for Science arguing that the warming effect caused by rising amounts of carbon - dioxide in the atmosphere would be swamped by the cooling effect caused by aerosol pollution like dust and smoke.
Satellite images can detect aerosol pollution in the air — but not through clouds.
But using a new simulation that relies on data from the Indian Ocean Experiment (INDOEX), researchers have demonstrated an exactly opposite mechanism — one in which aerosol pollution actually intensifies solar absorption and reduces cumulus cloud cover, which significantly offsets whatever cooling it might cause within other layers of the atmosphere.
That's comparable to aerosol pollution measured downwind of major cities such as Mexico City and Paris and greater than the pollution measured near Tokyo and the Northeast U.S.
Sulfur aerosol pollution, created via coal burning, is skyrocketing in Southeast Asia.
Apparently, aerosol pollution temporarily counters the warming and cools the climate.
[*) The temperature plateau between 1998 and 2008 would not just be ENSO, but also due to increased sulphur aerosol pollution in China.]
Although worldwide aerosol pollution is slowly declining... Continue reading →
This hemisphere difference is further amplified over European - African longitudes due to both natural (Atlantic Multidecadal Oscillation) and anthropogenic factors (decreased aerosol pollution over Europe following stricter environmental measures)-- both explained in more detail in our Sahel greening article.
Rising population and over-grazing by livestock was the first theory but studies now show the drought resulted from changes in ocean surface temperatures Folland et al (1986) Giannini et al (2003) which are likely due in part to the sulphate aerosol pollution of Europe and North America Rotstayn & Lohmann (2002) Biasutti & Gainnini (2006) and thus it is the cleaning of emissions from power stations that has likely allowed the rains to return.
Reductions of absorbing aerosol pollution from transportation and residential burning would help to reduce global warming and while also improving air quality.
In a recent study, we tracked aerosol pollution changes according to two established projections of future activities (IPCC Special Report on Emissions Scenarios projections A1B and B1) for the next 50 years.
By measuring the amount of red and green in paintings, researchers have estimated past aerosol pollution levels.
We always thought that — apart of course from soot [15 % of climate warming]-- such aerosol pollution creates cooling — as in the case of Chinese sulfur pollution and the Asian (Indian) brown cloud — and that air quality measures over recent decades in North America and Europe are now actually a major cause of increased warming speeds there — as the actual temperature catches up on the «CO2 baseline».
However — a group of scientists of the US Department of Energy Pacific Northwest National Laboratory, the University of Maryland and the Hebrew University of Jerusalem now say that aerosol pollution does not necessarily lead to (low - lying) stratus clouds one would appreciate for climatic cooling, but that it can also be a factor in the creation of thunderstorm clouds, clouds that have a complicated climate effect, but that are suspected of being net warmers.
Thankfully, the U.S. and many other countries around the world have worked to reduce haze - forming aerosol pollution, and we can all breathe a little easier.
As aerosol pollution is predicted to decrease over the next few decades, unmasking of the greenhouse effect may lead to accelerated global warming.storms and ocean plankton The human - generated aerosols are derived from industry, motor vehicles and vegetation burning.
The newer models project a greater reduction in future aerosol pollution from countries like India and China.
Atmospheric aerosol pollution, mixed with natural aerosols in the context of human caused global warming presents some interesting and extremely important challenges for consideration.
Human activity also contributes aerosol pollution through the alteration of natural surface cover, industrial pollutants, and the burning of fossil fuels.
Although funeral pyres make a small contribution to carbon aerosol pollution on a global scale, the study provides the most thorough analysis yet of their emissions, commented Mark Z. Jacobson, an atmospheric scientist at Stanford University, in a recent article in Chemical and Engineering News.
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