Sentences with phrase «aerosol pollution in»

Over a longer scale, the mid-century cooling has long been ascribed to the increase in sulpher and other aerosol pollution in the post-war industrialisation, this effect later diminished due to clean air legislation.

John Philips says: Over a longer scale, the mid-century cooling has long been ascribed to the increase in sulpher and other aerosol pollution in the post-war industrialisation, this effect later diminished due to clean air legislation.

[*) The temperature plateau between 1998 and 2008 would not just be ENSO, but also due to increased sulphur aerosol pollution in China.]

From sheer thermal inertia of the oceans, but also because if you close down all coal power stations etc., aerosol pollution in the atmosphere, which has a sizeable cooling effect, will go way down, while CO2 stays high.

Indeed, conventional wisdom held that higher levels of aerosol pollution in the atmosphere should cool the earth's climate because aerosols can increase cloudiness; they not only reduce precipitation, which raises the water content in clouds, but they also increase the size of the individual water droplets, which in turn causes more warming sunlight to be reflected back into space.

Aerosol pollution in China is heavily concentrated in industrialized, urbanized regions, while remote, thinly populated areas have much cleaner air.

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.

Not exact matches

These aerosols outweigh all other human sources of fine - particulate air pollution in much of the United States, Europe, Russia and China, according to new research.

The scientists expect further warming in the Arctic as levels of greenhouse gases will continue to increase and aerosol particle emissions will likely decrease to combat air pollution in different parts of the world.

«We've shown that under clean and humid conditions, like those that exist over the ocean and some land in the tropics, tiny aerosols have a big impact on weather and climate and can intensify storms a great deal,» said Fan, an expert on the effects of pollution on storms and weather.

They identified 10 environmental limits we might not want to transgress in the Anthropocene: aerosol pollution; biodiversity loss; chemical pollution; climate change; freshwater use; changes in land use (forests to fields, for example); nitrogen and phosphorus cycles; ocean acidity; and the ozone hole.

Sulphate pollution from power stations and factory chimneys produces aerosol particles in the atmosphere which encourage clouds to form.

The findings provide evidence that a 3 - kilometer - deep blanket of pollution — a mass of ash, acids, aerosols, and other particles — is disrupting weather systems in western Asia.

Until recently, the U.S. Department of Homeland Security has been investigating whether seeding storm clouds with pollution - size aerosols (particles suspended in gas) might help slow tropical cyclones.

In particular, they propose that cloud changes associated with aerosol particles in the atmosphere could be causing the weekend effect, though other pollution processes can not be ruled out at this timIn particular, they propose that cloud changes associated with aerosol particles in the atmosphere could be causing the weekend effect, though other pollution processes can not be ruled out at this timin the atmosphere could be causing the weekend effect, though other pollution processes can not be ruled out at this time.

Li said the study's findings should further spur countries like China and India to cut aerosol emissions so they reduce pollution and thereby increase their solar electricity generation more rapidly, in addition to the already known health benefits.

Published in the Proceedings of the National Academy of Sciences, the study shows that in the most polluted areas of northern and eastern China, aerosol pollution is reducing the potential for solar electricity generation by as much as one and a half kilowatt - hour per square meter per day, or up to 35 percent.

When the wind slows down, the concentration of small particles of air pollution (aerosols) increase, which help increase haze and leads to solar dimming in the area.

The question is: Does the current load of aerosols in the atmosphere already exceed that limit, in which case adding extra particles should not greatly affect cloud formation; or do they continue to be a limiting factor as pollution rises, so that added aerosols would continue to influence the clouds?

«It is therefore reasonable to expect that precipitation extremes will continue to intensify,» although how much is still a mystery, largely thanks to an unclear understanding of the atmospheric impact of how tiny flecks of pollution in the atmosphere — known as aerosols to scientists and comprising materials ranging from soot to sulfur dioxide.

According to a report that used INDOEX data and was published last month in Science, aerosols from man - made pollution may also play a role in weakening the planet's water supply.

Aerosols from the production of heavy oil is a growing climate and pollution concern because new tar sands developments are on the drawing board in Venezuela, Utah and elsewhere, the study says.

Aerosol pollution also affects the formation of clouds, which are seeded with dust particles in the atmosphere.

The study, published Wednesday in the journal Nature, showed that the production of tar sands and other heavy oil — thick, highly viscous crude oil that is difficult to produce — are a major source of aerosols, a component of fine particle air pollution, which can affect regional weather patterns and increase the risk of lung and heart disease.

Dr Zongbo Shi, the corresponding author of this work, at the University of Birmingham said: «Air pollution dissolves iron in aerosols, which may help to fertilize the oceans.

Scientists have already linked aerosol emissions to increases in lightning over areas of the Amazon prone to forest fires (pdf) as well as regions of China with thick air pollution.

Aerosols in urban air pollution and from major industries such as the Canadian tar sands are of concern to scientists because they can affect regional climate patterns and have helped to warm the Arctic.

Sulfur aerosol pollution, created via coal burning, is skyrocketing in Southeast Asia.

There is some research, though, that suggests changes in aerosol pollution have allowed more storms to reach higher intensities in this region.

Although records are sparse, pan evaporation is estimated to have decreased in many places due to decreases in surface radiation associated with increases in clouds, changes in cloud properties and / or increases in air pollution (aerosols), especially from 1970 to 1990.

The translation is that the little bugs that make methane in swamps get out - competed by other bugs that like acid rain (which is related to sulphate aerosols — mainly from power stations)-- so more industrial pollution, less methane emission (everything else being equal).

Why It Matters: Aerosols, tiny airborne particles of dust and pollution suspended in the atmosphere, affect the atmosphere and the surface of Earth by scattering and absorbing light.

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.

The ARM data will provide more detailed measurements of both aerosols and clouds to assist the research team in quantifying the impacts of aerosols on precipitation under a variety of atmospheric and pollution conditions.

At the same time we can not ignore the pollution spread by aerosols and industries in the air.

The translation is that the little bugs that make methane in swamps get out - competed by other bugs that like acid rain (which is related to sulphate aerosols — mainly from power stations)-- so more industrial pollution, less methane emission (everything else being equal).

When we pull back to consider the larger picture we see that pollution due to sulfate aerosols continued unabated in the great majority of coal burning plants worldwide, regardless of constraints imposed in the US and Europe.

The high levels of aerosol pollution to be found in many regions of Asia up to and including the present day are well documented: see https://www.economist.com/blogs/economist-explains/2018/01/economist-explains-19 and also https://www.vox.com/energy-and-environment/2017/11/22/16666808/india-air-pollution-new-delhi

«A rapid cutback in greenhouse gas emissions could speed up global warming... because current global warming is offset by global dimming — the 2 - 3ºC of cooling cause by industrial pollution, known to scientists as aerosol particles, in the atmosphere.»

So now get rid of most of the world's sulfate aerosols in the next 50 years because it's currently killing people, plants and destroying ecosystems (acid rain, pollution).

Then there is stated to be another 0.5 C warming being masked by aerosol pollution, principally in Asia that will clear as they hopefully clean up their air.

One suggestion that had been made some years ago — that the cooling may be caused by shading the sun by aerosol pollution — did not show up in the discussion on Saturday.

Since pollution prevention laws in the US and other first world nations resulted in a lowering of such aerosols after the period in question, the steep runup in temperatures during the last 20 years of the 20th century is then explained by the unleashing of heretofore suppressed CO2 emissions, no longer inhibited by industrial aerosols.

Since pollution prevention laws in the US and other first world nations resulted in a lowering of such aerosols after the period in question,»

It is likely that at least some of this change, particularly over Europe, is due to decreases in pollution; most governments have done more to reduce aerosols released into the atmosphere that help global dimming instead of reducing CO2 emissions.

Which means, early in the century, there was more aerosols, especially as there was little pollution control, during a period of increasing warmth.

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.

Then in 2000 he saw the temperature dip and said that maybe CO2 and aerosols are now canceling each other out — lets concentrate on soot (from human pollution).

Not it is not similar because one event injected sulfate aerosols into the stratosphere where they stayed for years and affected the globe while the other («human particulates and aerosol pollution») were produced in the troposphere and have a residency time in the atmosphere of about 4 days and had only a regional effect.

'' During the 1980s and»90s, the rapid decline of air pollution in the United States and Europe dominated the world's aerosol trends.