Sentences with phrase «warming pollutants in»

Sacramento — Reductions in emissions of black carbon since the late 1980s, mostly from diesel engines as a result of air quality programs, have resulted in a measurable reduction of concentrations of global warming pollutants in the atmosphere, according to a first - of - its - kind study examining the impact of black carbon on California's climate.

Reductions in emissions of black carbon since the late 1980s, mostly from diesel engines as a result of air quality programs, have resulted in a measurable reduction of concentrations of global warming pollutants in the atmosphere, according to a first - of - its - kind study — which Berkeley Lab participated in — examining the impact of black carbon on California's climate.

Not exact matches

More than 170 countries agreed early Saturday morning to limit emissions of key climate change - causing pollutants found in air conditioners, a significant step in the international effort to keep global warming from reaching catastrophic levels.

Pollutants that form minute droplets in the atmosphere have horrendously complex effects — so it's far from certain what they mean for global warming

Co-author Hayley Hung, a scientist with Environment Canada's Air Quality Division who studies toxic organic pollutants in the Arctic, said that in recent years, researchers had posited that warmer conditions would liberate POPs stored in land, ice and ocean reservoirs back into the atmosphere.

The researchers say that countries must also tackle short - lived climate pollutants like hydrofluorocarbons that accelerate warming greatly in the near term, and take some of the carbon that is currently in the atmosphere out.

Methane is an extremely efficient greenhouse gas which may contribute to enhanced global warming when free in the atmosphere, and such free methane, would then be considered a pollutant rather than a useful energy resource.

The very well - being of the northern food chain is coming under threat from global warming, land development, and industrial pollutants in the marine environment.

For example, sequestrating short - lived climate pollutants, such as methane and black carbon, yields much faster reductions in global warming compared to reductions in CO2.

Methane, for example, is the second strongest contributor to climate warming after CO2 and is also an ozone precursor: chemical reactions in the atmosphere involving methane produce ozone, a pollutant that presents significant health risks.

He runs through a laundry list of factors that could amplify virus - driven disease mortality: fisheries shifting food chains, global warming, marine pollutant — triggered toxic algae blooms, marine pollution in the form of chemical contaminants, and endocrine disruptors altering the host — pathogen balance.

Scientists conducting fieldwork in the region are reporting massive chick die - offs and nests with abandoned eggs, reports National Geographic's Winged Warnings series, which lays out the many threats facing the island's seabirds: warming oceans, earlier thaws, changing ocean chemistry and food webs, and increasing levels of ocean pollutants from PCBs to mercury.

In February a U.S. - led coalition proposed limiting short - living pollutants like soot and methane because they offer a quick way to restrain global warming.

In its first case confronting global warming, the U.S. Supreme Court ruled in April that greenhouse gases such as carbon dioxide are air pollutants that the Environmental Protection Agency can regulatIn its first case confronting global warming, the U.S. Supreme Court ruled in April that greenhouse gases such as carbon dioxide are air pollutants that the Environmental Protection Agency can regulatin April that greenhouse gases such as carbon dioxide are air pollutants that the Environmental Protection Agency can regulate.

Short - lived climate pollutants are so called because even though they warm the planet more efficiently than carbon dioxide, they only remain in the atmosphere for a period of weeks to roughly a decade whereas carbon dioxide molecules remain in the atmosphere for a century or more.

A study published in ACS» journal Environmental Science & Technology has found that because the newer engines emit higher levels of the climate - warming pollutant black carbon than traditional engines, their impact on the climate is uncertain.

The fact that the city's bus fleet still depends on diesel, Artaxo warned, creates an even worse health hazard in the shape of emissions of black carbon, one of the main components of soot and a pollutant that contributes to global warming.

Scientists estimate the pollutant was responsible for half the warming in the Arctic since 1890, and could be warming the globe with more than half the so - called «forcing» that carbon dioxide does.

Until recently, however, soot's role in warming has been muddied by the effects of another pollutant, sulfate particles generated by coal and petroleum combustion.

Bond, who led the most comprehensive study to date of black carbon's environmental effects, has found that the pollutant is second only to carbon dioxide in terms of its warming impact.

«There is still time to avoid most of this warming and get to a stable climate by the end of this century, but in order to do that, we have to aggressively reduce our fossil fuel use and emissions of greenhouse gas pollutants.»

The severe decline in precipitation in the African Sahel during the past 30 years seems to be related to both anthropogenic warming and aerosol pollutants.

There could, for example, be more pent - up warming currently being masked by other pollutants or already lurking in the oceans.

However, the research also showed that a sharp reduction in the emissions of certain pollutants would lead to dramatically decreased levels of ozone even as temperatures warm.

A: Global warming occurs when carbon dioxide (CO2) and other air pollutants and greenhouse gases collect in the atmosphere and absorb sunlight and solar radiation that have bounced off the earth's surface.

I won't argue that our added gases may contribute to the warming to some very, very small degree, but keep in mind, the ash plume from a good volcanic eruption such as the last big Pinatubo eruption eclipses into insignificants the amount of pollutants added to the atmosphere by human activity.

«As climate changes and the planet gets warmer, that drives the chemical reactions that create pollutants like ozone and fine particulate matter in the atmosphere,» said lead researcher Jason West.

This language would have been superfluous and without legal effect if, as Waxman assumes, EPA already had authority since 1970 to regulate carbon dioxide as an «air pollutant» or greenhouse gases in general based on their» global warming potential.»

If you can't find organic, make sure to wash your apples well in warm water to remove exterior pollutants before eating.

A warm oil massage in the morning will help clear ama from the skin tissues and will also provide a layer of protection from environmental pollutants.

But emissions have two parts: One is the pollutants that are harmful to people, animals, oceans, etcetera; the other is CO2 (carbon dioxide) emissions that are generally considered to be the cause of global warming, which is generally considered to be fact, and that CO2 is produced in direct proportion to how much fossil fuel is burned in cars, as well as buildings, locomotives, planes, and ships.

You can, of course, argue that other factors were at work in the early 20th century warming phase, but if you want to argue that the mid-century cooling was largely due to the neutralizing effect of industrial aerosol pollutants, then you can not, as did Rodgers, claim that any part of that earlier warmup was due to the burning of fossil fuels.

I won't argue that our added gases may contribute to the warming to some very, very small degree, but keep in mind, the ash plume from a good volcanic eruption such as the last big Pinatubo eruption eclipses into insignificants the amount of pollutants added to the atmosphere by human activity.

The elements that I believe are key to a successful agreement in Copenhagen include: • Strong targets and timetables from industrialized countries and differentiated but binding commitments from developing countries that put the entire world under a system with one commitment: to reduce emissions of carbon dioxide and other global warming pollutants that cause the climate crisis; • The inclusion of deforestation, which alone accounts for twenty percent of the emissions that cause global warming; • The addition of sinks including those from soils, principally from farmlands and grazing lands with appropriate methodologies and accounting.

This would serve multiple purposes, of (a) weaning us from dependence on foreign oil and simultaneously depleting terror - exporting countries of their revenue stream, (b) reducing other pollutants besides CO2, (c) encouraging a more gradual and less economically disastrous transition from an economony based on a finite resource, (d) slow global warming, (e) move us in the direction of a VAT tax rather than an income tax (actually, personally I don't think e is such a great thing, but as many conversative groups favor it, I don't see why they would oppose a revenue - neutral tax on fossil fuels.

There are enough health - damaging pollutants in the air today such that, if they (tropospheric ozone, its principal precursor methane, black soot, and some other trace gases that contribute to the global warming) were reduced by feasible amounts, the planet's energy balance could be restored, or nearly so.

If we shut down Indian Point and other nuclear power plants, we will become even more dependent — at least for the foreseeable future — on fossil fuels, which, in addition to spewing out toxic pollutants, also contribute to global warming.

While there are direct ways in which CO2 is a pollutant (acidification of the ocean), its primary impact is its greenhouse warming effect.

In a press release trumpeting the new paper, Singer announces: «Climate warming is naturally caused and shows no human influence: Carbon dioxide (CO2) is not a pollutant.»

If man - made global warming is such a critical issue, why are the main polluters in the world allowed to keep producing the pollutants while those who produce some of the least amounts are penalized?

As glaciers in the Himalayas melt faster due to global warming, pollutants buried under them are finding their way down to the north Indian plains.

Recent studies including an assessment by the United Nations Environment Program and the World Meteorological Organization indicate that it's possible to slow the pace of warming and melting in the Arctic in the near term by reducing emissions of two common climate pollutants: black carbon and methane, both of which are emitted from the extraction and burning of fossil fuels.

«The study did not look at greenhouse gases because they are not local air pollutants, and they can be offset globally by purchasing credits elsewhere in the world where the cost may be less to achieve the reduction» — Global warming from greenhouse gases is HOAX!

Recent scientific studies, including an assessment by the United Nations Environment Program and the World Meteorological Organization indicate that it's possible to slow the pace of warming and melting in the Arctic in the near term by reducing emissions of two common air pollutants, soot and smog.

You'll note an acceleration of those temperatures in the late 1970s as greenhouse gas emissions from energy production increased worldwide and clean air laws reduced emissions of pollutants that had a cooling effect on the climate, and thus were masking some of the global warming signal.

The mitigation of Short - lived Climate Pollutants (SLCPs) has received much attention in the past few years for its potential to lessen health - related impacts of air pollution, prevent major crop losses, and in some cases also slow down global warming.

of Short - lived Climate Pollutants (SLCPs) has received much attention in the past few years for its potential to lessen health - related impacts of air pollution, prevent major crop losses, and in some cases also slow down global warming.

Excellent post, Jos.. One small point: I think Roger Pielke Jr. does believe in the consensus, if that is defined as: «CO2 and other positive forcing agents such as methane, black carbon, and tropospheric ozone have been increasing, and these pollutants warm the troposphere.»

There is a substantial generation gap in Poland, where younger Poles (71 %) are more likely to back government curbs on global warming pollutants than are older Poles (57 %).

4.3 million of these deaths are due to 2.8 billion people in the developing world who cook and keep warm inside their homes, by burning dung, firewood and coal — filling their living spaces with smoke and pollutants.