Sentences with phrase «warming pollutant black»

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.

Not exact matches

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.

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.

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.

The fine, black, powdery pollutant may be responsible for the very different warming trends observed between the Northern and Southern hemispheres.

But a new report suggests that tackling emissions of two other short - lasting pollutants — methane and the black component of soot — could slow expected warming by a full 0.5 ˚C beyond what targeting CO2 alone could accomplish by 2070.

The boats produce other short - lived pollutants, such as sulfur oxides and black carbon, which have cooling and warming effects, respectively.

Tackling the problems raised by these potent pollutants — methane, black carbon, tropospheric ozone and hydrofluorocarbons (HFCs) chief among them — offers a glimmer of opportunity for saving the rapidly warming Arctic.

However, ships are a major source of global warming pollutants including: carbon dioxide, nitrous oxide and black carbon.

Black carbon is the second largest cause of global warming, and this bill will ensure that we have the information we need to address this dangerous pollutant.»

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.

Black carbon — a dangerous pollutant emitted by old, dirty diesel engines like school buses — is thought to be the second largest contributor to global warming after carbon dioxide.

The Nature commentary by Penner et al. on which this argument is based actually says that on top of the global warming caused by carbon dioxide, other short - lived pollutants (such as methane and black carbon) cause an additional warming approximately 65 % as much as CO2, and other short - lived pollutants (such as aerosols) also cause some cooling.

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.

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.

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.»

However other pollutants, especially black carbon, are not reflective and at low altitudes warm.

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.

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.

A new study by Allen et al. has determined that black carbon and other modern pollutants have been major contributors to temperature warming, which has enhanced the expansion of the tropics into higher latitudes.

The global warming science facts, black carbon is a major pollutant that not only kills thousands per year but has been found to be a major contributor to increasing global temperatures - a new peer reviewed study confirms findings of previous research

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.

The report, however, is the first to confirm, based on both observations and computer modeling, that the warming effect of black carbon dominates, overwhelming any cooling effect of other pollutants.

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.

Action on these pollutants is particularly important to Canada's North, a region that is warming faster than the rest of the planet, in part as a result of SLCPs such as black carbon.

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

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.