Sentences with phrase «produces aerosol particles»

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

The results show for the first time for a number of natural compounds, which together account for around 70 per cent of the biological hydrocarbon emissions, how much each compound produces low - volatility products and how they can possibly affect the climate via producing aerosol particles.

Not exact matches

Whether these reactions produce condensing vapours that can condense onto the smallest particles or even molecules can have strong impacts on aerosol formation.

The recently published research results provide further evidence that forests can affect the climate by producing low - volatility vapours that are able to condense and grow aerosol particles.

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.

The results, said co-author and PNNL laboratory fellow Ruby Leung, «strongly suggest that increasing aerosol concentrations (particles, mainly soot and sulfur, that pollute the air) in the past has produced a fog - like haze that has reduced solar radiation (surface heat from sunshine), despite more frequent clear days that should lead to increased solar radiation.»

CLOUD shows that organic vapours emitted by trees produce abundant aerosol particles in the atmosphere in the absence of sulphuric acid.

Secondary organic aerosols, or SOAs, are created when hydrocarbon gases, given off by everything from pine trees to snow blowers, undergo a series of chemical reactions in the atmosphere to produce particles.

Airborne particles in the form of naturally occurring dusts and human - produced aerosols can serve as ice nuclei, sites around which water vapor condenses into clouds.

The organic aerosol particles that coat the toxic hitchhikers are wafted into the atmosphere through emissions from trees (like those that produce the smell of pine trees), and burning biomass and fossil fuel to form a semi-solid sap - like casing surrounding and protecting the particle's payload from breaking down in the atmosphere.

We must remember that are a number of aerosol sources that produce particles of this size (about 100 nm or 0.1 micron), including anthropogenic ones.

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.

In response, the IPCC added a cooling factor to its models of the atmosphere, consisting of tiny aerosol particles produced by the emission of sulfur dioxide from electric power plants.

As the aerosol particles rise on the warm, convecting air, they produce more rain over northern India and the Himalayan foothill, which further warms the atmosphere and fuels a «heat pump» that draws yet more warm air to the region.

These fires produced huge amounts of fine aerosol particles and trace gases, which can potentially impact the climate and degrade air quality drastically at ground level.

Before a cloud can produce rain or snow, rain drops or ice particles must form and aerosols often serve as the nuclei for condensation.

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.

Studying the atmospheric aerosol particles, which impact cloud formation and particles, above a pristine forests, researchers discovered that when left alone the Amazon acts as its own «bioreactor»: clouds and precipitation are produced by the abundance of plant materials.