Sentences with phrase «effect on aerosol»

The continent's policies most likely have the biggest effect on aerosol - related climate change.

To test their effect on aerosol nucleation, Kirkby's team fired beams similar to cosmic rays through the chamber and found it increased nucleation between 2 and 10 times.

My best guess from browsing Chapter 8 of the Physical Science Basis is that given the high uncertainty in the indirect effect on aerosols, the decision was to report GWPs that don't include these effects.

Probably not the most relevant one, though, given that the main point of the Shindell et al paper was methane's indirect effect on aerosols.

Obviously this could have an effect on aerosols, sulphur, co2 and warming into the sea, which I had previously understood to be trivial.

Not exact matches

Their aerosol paths and effects on surface temperatures could be modeled using Pinatubo guidelines.

Even without the complicating effects of aerosols, things aren't that simple on Earth.

The small aerosols need to grow nearly a million times in mass in order to have an effect on clouds.

In this paper, UCR and Forest Service researchers teamed up to explore a previously unstudied aspect of nitrogen saturation: its effect on the gases and aerosols released during burning of forest fuels from an area experiencing nitrogen saturation.

Aerosols can also have big effects on clouds, for instance making them brighter so that they reflect more sunlight back into space.

Besides SSCE, scientists have also been investigating stratospheric sulfur injections — firing sun - reflecting aerosols into the air, similar to the cooling effect after a volcanic eruption — and cirrus cloud thinning, where you thin the top level of clouds, which have a warming effect on the planet.

«It is widely understood that aerosols have a net cooling effect on climate, counteracting the warming caused by greenhouse gases.

Overall, improving our understanding of one of the largest natural aerosol sources is critical if we are to understand the effects of human - made aerosols on climate,» says Matt Salter.

«Tiny particles have outsize impact on storm clouds, precipitation: Amazon rainforest provides a unique natural lab to study effects of aerosols.»

«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.

Several symposia have a local focus, including sessions on ecology and education in San Diego's Mission Bay Park and the causes and effects of aerosol particles in San Diego's atmosphere.

A deeper understanding of dust aerosols and their effects on precipitation could also be used to boost precipitation artificially, Prather said.

Despite its smaller ash cloud, El Chichn emitted more than 40 times the volume of sulfur - rich gases produced by Mt. St. Helens, which revealed that the formation of atmospheric sulfur aerosols has a more substantial effect on global temperatures than simply the volume of ash produced during an eruption.

Forster's chapter also reports on another important uncertainty: the cooling effect of smoke and other aerosols, which some argued almost negated the warming effect of greenhouse gases in the short term.

The theory of dangerous climate change is based not just on carbon dioxide warming but on positive and negative feedback effects from water vapor and phenomena such as clouds and airborne aerosols from coal burning.

The information could also feed into climate models to help understand the effects of clouds and aerosols on Earth's energy balance.

Scientists believe that aerosols exert an influence on climate roughly equal to that of greenhouse gases, but the current estimate of aerosols» climate effect carries a large margin of error.

«There is a link between the chemistry that goes on in this type of air motion and the subsequent effects on the trace gases and aerosols in the atmosphere that ultimately impact climate.»

The study also showed that the effect was much larger on a regional scale, counteracting possibly up to 30 % of warming in more rural, forested areas where anthropogenic emissions of aerosols were much lower in comparison to the natural aerosols.

Yet there is no doubt that research into atmospheric aerosols is becoming increasingly important due to the effects that they can have on the global temperature of Earth, given that solar radiation is the main source of energy for Earth - Atmosphere system.

However, he says, «Aerosol effects on climate are one of the main uncertainties in climate models.

«Scientists have talked about Arctic melting and albedo decrease for nearly 50 years,» said Ramanathan, a distinguished professor of climate and atmospheric sciences at Scripps who has previously conducted similar research on the global dimming effects of aerosols.

At least over the oceans, the pre-industrial cloud conditions would have been considerably different from those of today; this implies that the aerosols we have been adding to the atmosphere may have had a significant effect on global patterns of cloud formation and rain.

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.»

When analyzed together with the aerosol loading over the same area at the same time, the outcome, says Koren, was a «textbook demonstration of the invigoration effect» of added aerosols on clouds.

The latter type of sensors, Robock notes, could directly measure the size distribution of aerosols, which could help researchers better model their effects on climate.

The cooling effect of aerosols can partly offset global warming on a short - term basis, but many are made of organic material that comes from sources that scientists don't fully understand, said Joost de Gouw, a research physicist at NOAA's Earth System Research Laboratory in Boulder, Colo., who is unaffiliated with the studies.

He explained that the intermediates turn certain greenhouse gases into aerosols, which help form clouds that have a net cooling effect on the planet.

Various aerosols also rise up in the atmosphere, but their net effect on global warming or cooling is still uncertain, as some aerosols reflect sunlight away from Earth, and others, in contrast, trap warmth in the atmosphere.

This mission is fulfilled by operating atmospheric observatories around the world that collect massive amounts of atmospheric measurements to provide data products that help scientists study the effects and interactions of clouds and aerosols and their impact on the earth's energy balance.

One just included the effective influence on temperatures from manmade forces (including greenhouse gases and aerosols, which tend to have a cooling effect), while the second included both manmade and natural ones (including volcanic activity and solar radiation).

Subsequently we will investigate the effects of these vapours on the nucleation and growth of aerosols.

I disagree with Leis's claim that climate models do not good enough information on aerosol effects.

What's next: The team is working to gather additional field data and perform further simulations to accurately address aerosol effects on clouds.

This is one of the best examples of why aerosol mixing state is so important for modeling the effect of aerosols on climate.

Now if this was the 1980s they might have had a point, but the fact that aerosols are an important climate forcing, have a net cooling effect on climate and, in part, arise from the same industrial activities that produce greenhouse gases, has been part of mainstream science for 30 years.

I guess I am surprised that with better understanding of the importance of water vapor feedback, sulfate aerosols, black carbon aerosols, more rapid than expected declines in sea ice and attendant decreases in albedo, effects of the deposition of soot and dust on snow and ice decreasing albedo, and a recognition of the importance of GHGs that were probably not considered 30 years ago, that the sensitivity has changed so little over time.

In future work, the team will tackle the aerosol effects on precipitation.

The multi-scale aerosol - climate model, an extension of a multi-scale modeling framework, examined specific aerosol - cloud interactions and their effects on the Earth's energy budget, one of the toughest climate forecasting problems.

Sally, who was nominated by Dr. Beat Schmid, Associate Director, Atmospheric Sciences and Global Change Division, was honored for her exceptional contribution in the field of atmospheric science, particularly in her efforts to improve understanding of the radiative effect of clouds and aerosols on the Earth's atmosphere and their representation in climate models.

Microphysical effects determine macrophysical response for aerosol impacts on deep convective clouds, Proc Natl Acad Sci U S A, Early Edition online the week of November 11 - 15, 2013, DOI: 10.1073 / pnas.1316830110.

Comparisons show a lesser effect on the Earth's energy budget, considering the additional burden of human - caused aerosols.

This mis - representation and can have significant ramifications for estimating the direct and indirect effects of aerosols on climate.

Fascinatingly, the book from the mid-70s said that there was one climate scientist — Wally Broecker - who predicted that the greenhouse warming was on the verge of overtaking the aerosol cooling effects and that by the year 2000 the planet would be warmer than it had been in 1000 years.

CLOUD is designed to understand how new aerosol particles form and grow in the atmosphere, and their effect on clouds and climate.