Sentences with phrase «as aerosol pollution»

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.

Not exact matches

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.

The research focuses on the power of minute airborne particles known as aerosols, which can come from urban and industrial air pollution, wildfires and other sources.

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.

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.

Preliminary analyses show that most of the pollution was sulphate aerosols — along with dust and carbonaceous particles such as black carbon.

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.

This simple analysis shows that the «2 degree target» of «dangerous anthropogenic interference» is looming on the horizon, as the climate equilibrates and aerosol pollution is cleaned up.

«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.»

Additionally, the aerosol pollutant hypothesis ignores the fact that, despite the US Clean Air Act, the countries with the largest populations, such as India and China, did not adopt pollution controls until well into the 21st century.

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.

And we could even allow more sulphate aerosol into the atmosphere, as this has proven successful at global dimming — taking care about not to release «pollution» near centres of population where it could damage health.

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

It will be invaluable to have these tools in the public sphere as China's economic slowdown and air pollution reduction programs continue to impact Aerosol emissions.

«since the mid 1980s a significant increase in visibility has been noted in western Europe (e.g. Doyle and Dorling, 2002), and there are strong indications that a reduction in aerosol load from anthropogenic emissions (in other words, air pollution) has been the dominant contributor to this effect, which is also referred to as «brightening».»

Why wouldn't (or couldn't) NOAA acknowledge geoengineering atmospheric aerosol dispersions as a source of particulate pollution?

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».

Everyday terms that hint at aerosol sources, such as smoke, ash, haze, dust, pollution, and soot are widely used as well.

This is as to be expected, since continued efforts to reduce atmospheric aerosols in the West have resulted in less dimming (more warming), while in the East increasing pollution has caused more dimming (less warming).

As it turns out, forcings that have tended to cause cooling, like increased aerosol pollution, are particularly efficient.

Generally, the trend has been attributed to an increase in sulfur pollution, which rapidly forms tiny particles in the air known as «aerosols» that reflect incoming solar energy back into space.

However, this offsetting effect is unlikely to remain in the future as improved pollution controls are expected to significantly reduce the cooling effect of aerosols over the course of coming decades: Meinshausen et al (2006).

But I've been shifting my thinking based on recent conversations with some of the authors below about the feasibility of incremental management of sun - blocking aerosols, even as warming aerosols contributing to conventional air pollution are reduced.

Researchers have blamed this short - lived cooling, more pronounced in the Northern Hemisphere, on a build - up of sunlight - blocking sulphate aerosols from fossil fuels, which began to clear in the 1970s as pollution controls took hold.

In addition, prior to the 1970s there were limited pollution controls, allowing pollutant aerosols to act as coolants via reflection of solar radiation.

The identification of other, sometimes more powerful, greenhouse gases such as methane, the contributions to atmospheric carbon dioxide from other human activities such as deforestation and cement manufacture, better understanding of the temperature - changing properties of atmospheric pollution such as sulphur emissions, aerosols and their importance in the post-1940s northern hemisphere cooling: the knowledge - base was increasing year by year.

Warming from decade to decade can also be affected by human factors such as variations in the emissions, from coal - fired power plants and other pollution sources, of greenhouse gases and of aerosols (airborne particles that can have both warming and cooling effects).

His characterization of the aerosol as pollution has also been used here and elsewhere in articles, blogs, etc..