Sentences with phrase «small changes in emissions»

Atmospheric CO ₂ responds very slowly to small changes in emissions, because it is very large, while emissions are small, and the change in emissions is tiny.

States like Texas with a large power demand showed high emissions of all pollutants, but smaller changes in emissions per degree Celsius.

If we are talking about trivialness, lets think about how much cleaner the air would actually be with such a small change in emissions...

Not exact matches

But there is some good news: Even seemingly small changes in curbing greenhouse gas emissions not only can reduce harmful pollutants and clear the air, but also help to slow climate change.

A limit of approximately 500 GtC on cumulative fossil fuel emissions, accompanied by a net storage of 100 GtC in the biosphere and soil, could keep global temperature close to the Holocene range, assuming that the net future forcing change from other factors is small.

Because emissions were starting from a small base, they changed the CO2 concentration little in spite of the fact that they were increasing quickly.

Because the drains out of the various bathtubs involved in the climate — atmospheric concentrations, the heat balance of the surface and oceans, ice sheet accumulations, and thermal expansion of the oceans — are small and slow, the emissions we generate in the next few decades will lead to changes that, on any time scale we can contemplate, are irreversible.

According to the new research in PNAS, some areas where small shifts in individual behavior could strikingly reduce United States emissions include improving home insulation, changing to a more fuel - efficient vehicle, cruising at the most efficient speed (55 miles per hour) and carpooling when possible.

Temperature tends to respond so that, depending on optical properties, LW emission will tend to reduce the vertical differential heating by cooling warmer parts more than cooler parts (for the surface and atmosphere); also (not significant within the atmosphere and ocean in general, but significant at the interface betwen the surface and the air, and also significant (in part due to the small heat fluxes involved, viscosity in the crust and somewhat in the mantle (where there are thick boundary layers with superadiabatic lapse rates) and thermal conductivity of the core) in parts of the Earth's interior) temperature changes will cause conduction / diffusion of heat that partly balances the differential heating.

Refraction, specifically the real component of refraction n (describes bending of rays, wavelength changes relative to a vacuum, affects blackbody fluxes and intensities — as opposed to the imaginary component, which is related to absorption and emission) is relatively unimportant to shaping radiant fluxes through the atmosphere on Earth (except on the small scale processes where it (along with difraction, reflection) gives rise to scattering, particularly of solar radiation — in that case, the effect on the larger scale can be described by scattering properties, the emergent behavior).

Projected changes in climate extremes under different emissions scenarios generally do not strongly diverge in the coming two to three decades, but these signals are relatively small compared to natural climate variability over this time frame.

The ability of a band to shape the temperature profile of the whole atmosphere should tend to be maximum at intermediate optical thicknesses (for a given band width), because at small optical thicknesses, the amounts of emission and absorption within any layer will be small relative to what happens in other bands, while at large optical thicknesses, the net fluxes will tend to go to zero (except near TOA and, absent convection, the surface) and will be insensitive to changes in the temperature profile (except near TOA), thus allowing other bands greater control over the temperature profile (depending on wavelength — greater influence for bands with larger bandwidths at wavelengths closer to the peak wavelength — which will depend on temperature and thus vary with height.

In a recent interview, Nordhaus - whose models project a smaller economic impact than most - said that regardless of whether the models showing larger or smaller economic impacts from climate change are correct, «We've got to get together as a community of nations and impose restraints on greenhouse gas emissions and raise carbon prices.

However, the changes are small relative to those associated with an unmitigated rise in CO2 emissions.

Posted in Adaptation, Agriculture, Biodiversity, CLIMATE SCIENCE, Development and Climate Change, Global Warming, Green House Gas Emissions, Information and Communication, Lessons, News, Research, Resilience, Vulnerability Comments Off on Small Climate Change May Aid Wheat

When asked about specific proposals to reduce climate change, most Democrats (90 %) and smaller majorities of Republicans (65 %) say that restrictions on power plant emissions would make a difference in reducing climate change, as would tax incentives encouraging businesses to reduce their carbon emissions (85 % and 65 %, respectively).

Our model suggests that the effect of changes in cosmic ray intensity on CCN is small and unlikely to be comparable to the large variations in natural primary aerosol emissions.

Alter your driving habits Small changes to your driving style can make a big difference in carbon emissions.

Contribution from working group I to the fifth assessment report by IPCC TS.5.4.1 Projected Near - term Changes in Climate Projections of near - term climate show small sensitivity to Green House Gas scenarios compared to model spread, but substantial sensitivity to uncertainties in aerosol emissions, especially on regional scales and for hydrological cycle variables.

Though not CMOS's first public statement, it was one of the most «vocal about climate change of late» due to the fact «that Canada's new Conservative government does not support the Kyoto Protocol for lower emissions of greenhouse gases, and opposed stricter emissions for a post-Kyoto agreement at a United Nations meeting in Bonn in May [2006]» and because «a small, previously invisible group of global warming sceptics called the Friends of Science are suddenly receiving attention from the Canadian government and media,» Leahy wrote.

The «pollution paradigm» of climate change limits the opportunities for addressing or solving the issue, in part because fossil fuel emissions make up such a small fraction of the annual flux of CO2 into the atmosphere (less than 3 %).

The Australian Government's chief adviser on climate change told a conference in London that it might be more efficient to evacuate small island states subject to inundation rather than require industrialised countries like Australia to reduce their greenhouse gas emissions.2

The relatively small changes in the N2O emissions across regions and scenarios are explained, in part, by a limited capacity of the SRES models to capture drastic shifts in technologies and practices (e.g., new catalytic converters or new manure management systems) that directly impact emission levels.

Go see Opasnet at en.opasnet.org and find out how to participate by: en.opasnet.org Reading Opasnet content Commenting Opasnet content Participating in polls Editing and creating Opasnet content Providing data to the Opasnet base Peer - reviewing Opasnet content Moderating parts of Opasnet You can also check out and contribute to the on - going assessments on e.g.: Impacts of emission trading on city - level Impacts of heating in small municipalities Climate change, air quality and housing Costs and benefits of composite traffic Benefits and risks of eating fish

To summarize: available evidence indicates that the differences between projected emissions using MER exchange rates and PPP exchange rates are small in comparison to the uncertainties represented by the range of scenarios and the likely impacts of other parameters and assumptions made in developing scenarios, for example, technological change.

Where efforts to address climate change have for the last 20 years focused on reducing national emissions through sweeping policies, like cap and trade or carbon taxes, climate policy today has shifted decisively toward smaller bore, pragmatic policies that don't promise to eliminate the climate crisis in one fell swoop but do help us move our economy toward greater «decarbonization,» sector by sector and technology by technology.

However, since this cycle takes hundreds of years, it could be that the current slow and small change in pH in the near surface waters since 1700 is due to the Medieval Warm Period rather than human co2 emissions.

Again, whilst you are correct in saying that a few changes in fertilizer practices in the US, China and India could yield large agricultural emissions benefits I would not bet on any wholesale (or even small and targeted) changes being made in those three countries any time soon.

Data from ice cores show little change in the atmospheric CO2 levels over millennia despite changes in land use and small emissions from humans.

Building on the available economic data and the larger historical record, the ACEEE diagnostic review indicates a large opportunity for climate change legislation to open up an even greater potential for efficiency improvements that can power a small but net positive gain in the nation's economy while substantially reducing greenhouse gas emissions.

Thus, to the greatest extent possible, policies at all levels should be designed and implemented to meet four goals: (i) In sustainable ways, maintain and increase the security of food supplies for food insecure people, particularly in developing countries; (ii) Enable small - scale food producers and other vulnerable populations to become more resilient to climate change; (iii) Sustainably reduce emissions from the agricultural sector; and (iv) Reduce emissions from the conversion of other land to agriculturIn sustainable ways, maintain and increase the security of food supplies for food insecure people, particularly in developing countries; (ii) Enable small - scale food producers and other vulnerable populations to become more resilient to climate change; (iii) Sustainably reduce emissions from the agricultural sector; and (iv) Reduce emissions from the conversion of other land to agriculturin developing countries; (ii) Enable small - scale food producers and other vulnerable populations to become more resilient to climate change; (iii) Sustainably reduce emissions from the agricultural sector; and (iv) Reduce emissions from the conversion of other land to agriculture.

Although their contribution to climate change is still relatively small, it is expected to soar in the coming decades, with emissions of HFCs increasing at a rate of 10 - 15 percent per year.

The answer is that CO2 is only one of several factors that influence temperature, such as volcanic eruptions, solar variability, sulfur dioxide emissions (see Figure 1), and small changes in the earth's orbit.

Uncertainty in these projections due to potential future climate change effects on the ocean carbon cycle (mainly through changes in temperature, ocean stratification and marine biological production and re-mineralization; see Box 7.3) are small compared to the direct effect of rising atmospheric CO2 from anthropogenic emissions.

So effective are stratocumulus in altering Earth's energy budget that small changes in their aerial coverage could have impacts similar in magnitude to the impacts of all anthropogenic emissions of greenhouse gases (e.g. Slingo (1990)-RRB-.

A small but respected group of scientists has been calling for consideration of Solar Radiation Management as a further piece of the climate change response puzzle, in addition to limiting greenhouse gas emissions, enhancing greenhouse gas sinks, and the taking of adaptive steps.

Among the many mitigation measures currently under development, some could provide new opportunities to hundreds of millions of smallholder farmers, pastoralists and forest dwellers, through their roles as sequesters of carbon, through the changes they can make in their land use and cultivation practices to reduce GHG emissions, and as small scale producers of clean energy.

I describe a recent resurgence in the construction of hydroelectric dams, both large and small, around the world, spurred, in substantial part, by their newfound description as a form of «clean energy» capable of mitigating the greenhouse gas emissions largely responsible for anthropogenic contributions to global climate change.

At 11.30 pm Paris time, a small group of White House officials dashed into a temporary plywood hut in the exhibition hall where, a few hours earlier, a historic legal agreement to cut emissions causing climate change was secured.

There were a few objections — one, that the changes in carbon emissions and uptake were too small to make a real difference — however, the same argument also applies to solar forcing and volcanism.

I also tried to implement their function as a lag that finishes quick for small changes in forcing but drags for larger changes, but the functional form made that delay a long time to get any temperature rise at all with a BAU type emissions profile.

In order to offset the temperature change from a doubling of CO2 emissions, you only have to reflect a small amount of sunlight away from the earth — one or two percent.

Idso's calculations for climate sensitivity are greatly at odds with the paleoclimate data; if sensitivity were as small as he proposes, the Milankovic changes in solar forcing wouldn't be enough to kickstart the climb out of an ice age, but this still presupposes AGW, that CO2 emissions will increase the temperature by some amount.

He says that man - made emissions are a small factor in climate change and doesn't agree that global warming poses a worrisome threat; and his water vapor theory is not the only reason.

Even small changes in the lifecycle emissions figures for gas would eventually affect policy and incentives for the utility industry, and ultimately make a big difference in how gas stacks up against its alternatives.

What I mean by this question is that climate change poses a real challenge to social change movements because it is gradual, delayed in its effects, and uneven in its impacts.The message that is coming from climate scientists at present, along with climate - hawkish public figures, is that we still have time to change — that international conferences, evolving public policies, steady but small annual emissions reductions, could still prove sufficient to keep us within the «safe zone».

The hypothesis as I understand it is that a small change in temperature of the world's oceans causes the Solubility pump to change the amount of CO2 «pumped», this can (and does) easily dwarf man's emissions.

«We may be beyond redemption, we may be at the point of no return where the emissions in the atmosphere will carry on to contribute to climate change to produce a sea - level change that in time our small low - lying islands will be submerged,» he said.

Center for American ProgressWith other smaller changes in global emissions projections — including a decrease due to the recent economic downturn and reduced emissions from deforestation and loss of peat lands — the high - end abatement path so far from the Copenhagen Accord commitments leaves us only 5 gigatons short of the 44 gigaton goal by 2020 — two - thirds of the reductions needed to achieve climate safety (Figure 3).