Sentences with phrase «climate warming pollutants»

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.

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.

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.

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.

«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.»

«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.

If human - caused climate change is to be slowed enough to avert the worst consequences of global warming, carbon dioxide emissions from coal - fired power plants and other pollutants will have to be captured and injected deep into the ground to prevent them from being released into the atmosphere.

Mr. Gore, the 2000 Democratic presidential nominee and co-winner of the Nobel Peace Prize for his work on climate change, told the Senate Foreign Relations Committee that the new spending Mr. Obama is proposing will begin to quickly reduce emissions of carbon dioxide and other pollutants blamed for global warming.

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.

The oil and gas industry is the nation's largest industrial source of methane, a much more potent climate - warming pollutant than carbon dioxide pound - for - pound, and the oil and gas sector is the second largest industrial contributor to overall climate pollution.

Fair enough, reading the title to Singer's press release, «Climate warming is naturally caused and shows no human influence - Carbon dioxide (CO2) is not a pollutant,» one might get that impression.

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.»

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.

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.

There is growing recognition of the value of near - term actions to reduce short - lived climate pollutants (SLCPs) such as methane, black carbon, and various hydrofluorocarbons that have large global warming potentials.

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.

Its definition as a pollutant relies entirely on its alleged causation of significant global warming and on the additional assumption that a warmer climate is damaging.

One is a focus on warming driven only by carbon, ignoring short - lived climate pollutants, because of our emphasis on long - term commitment.

Methane is both an energy commodity itself and an intense climate pollutant with significant global warming impact.

It is a potent climate pollutant responsible for about a quarter of today's global warming, and can be associated with public health problems, such as the headaches, nausea and other symptoms that have been reported by residents of the nearby Porter Ranch neighborhood.

While diesels are the workhorses of the transport sector and relatively energy efficient (as compared to gasoline vehicles or jet aircrafts), their combined contribution to transportation - related climate warming greenhouse gases and other short - lived climate pollutants, particularly black carbon, is significant.

To quantify the impact of changes in short - lived climate pollutants and regional climate forcings, in addition to the impact of warming induced by greenhouse gases, on weather extremes in Africa.

We have already emitted enough pollutants to warm the climate to dangerous levels (warming by 1.5 °C or more).

However in John's recent weekly news (28 Dec) the 3rd article (Climate change 2013: Where we are now - not what you think) contained - «The new IPCC report tells us that half of warming (57 %) that should have already occurred has been masked by aerosols mostly emitted since the turn of the century in rapidly developing Asian nations (yes, warming would double if cooling smog pollutants were suddenly cleaned up in Asia).»

While we must continue to aggressively reduce CO2 emissions, efforts to reduce short - lived climate pollutants like black carbon and methane can have an immediate effect on slowing warming.

«The short - lived climate pollutants [like methane] that we emit from human activities are basically controlling how fast the warming occurs,» she said.

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.

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.

Based on his research, he developed a new approach for mitigating climate change that involves mitigating emissions of four short - lived climate pollutants (SLCPs) to drastically reduce near - term warming and slowing down the retreat of the Himalayan glaciers.

Fast action to reduce short - lived climate pollutants (SLCPs) could slow the rate of global warming while saving millions of lives over the next several decades from air pollution — which now kills more than 6 million people a year.

Since a sustainable future based on the continued extraction of coal, oil and gas in the «business - as - usual mode» will not be possible because of both resource depletion and environmental damages (as caused, e.g., by dangerous sea level rise) we urge our societies to -LSB-...] Reduce the concentrations of warming air pollutants (dark soot, methane, lower atmosphere ozone, and hydrofluorocarbons) by as much as 50 % [and] cut the climate forcers that have short atmospheric lifetimes.

Although it is important to reduce the remaining climate uncertainties, such as the magnitude of the impacts of short - lived pollutants, it does not change the fact that CO2 is very likely the driving force behind the current global warming, or that if we double the amount of CO2 in the atmosphere from pre-industrial levels, the planet will likely warm in the range of 2 to 4.5 °C.

Interestingly, Penner et al. find that whether the climate sensitivity parameter is on the low or high end, reducing anthropogenic emissions of the short - lived warming pollutants would achieve a significant reduction in global warming over the next 50 - 100 years.

And to drive home this point, climate models indicate that if the U.S. were to reduce its emissions by 80 % the impact on U.S. temps would be a measly 0.075 °C reduction - the Asian pollutant warming overwhelms the reduction due to less CO2.

Deep cuts in carbon dioxide emissions are urgently needed to prevent dangerous climate change, but they must be complemented by reductions in short - lived climate pollutants, which produce a strong global warming effect but have relatively brief atmospheric lifetimes.

«Reducing black carbon and the other short - lived climate pollutants can cut the rate of Arctic warming by two - thirds.

Methane is an invisible, yet powerful, climate pollutant responsible for about 25 % of current global warming.

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Motor vehicles give off only minimal amounts of sulfates and nitrates, both pollutants that cool climate, though they produce significant amounts of pollutants that warm climate such as carbon dioxide, black carbon, and ozone.

See also: Politics of global warming Agriculture See also: Climate change and agriculture According to the EPA, agricultural soil management practices can lead to production and emission of nitrous oxide (N2O), a major greenhouse gas and air pollutant.

If they follow a path with slowly decreasing immigration of darkside CO2, and if they clean other warming pollutants from the air, climate change will be moderate, within the range of recent millennia, with added global warming less than 2 °F (1 °C).»