While the imposition of such a high price on carbon emissions is outside the realm of short - term political feasibility, a price of that magnitude is not required to engender
a large change in emissions trajectory.
Thus the influence of aerosols must be visible mainly in the NH and specifically in regions downwind the sources where
the largest change in emissions has happened.
Not exact matches
Ontario has successfully issued the
largest green bond
in Canadian history, raising $ 1 billion for infrastructure projects
in communities across the province that will help reduce greenhouse gas
emissions and fight climate
change.
Australia had a government
change just before the conference, whereupon the new prime minister, Kevin Rudd, immediately signed on to the Kyoto treaty, committing his country to
large cuts
in CO2
emissions.
Finally,
in so doing, both the EU and China would put further pressure on the US, which, even though it has the highest per / capita
emissions rate among the world's
largest economies, it is still reticent to commit to fight climate
change.
In an attempt to resolve a sticking point between the U.S. and China, Indian negotiators have proposed monitoring the
emissions responsible for climate
change from all
large countries
The simulations suggest that, for greenhouse gas
emissions at or above current rates,
changes in climate will very likely be
larger than the
changes already observed during the 20th century.
SHANGHAI — China will soon begin its grand experiment to rein
in climate
change, using the nation's regionwide carbon markets as the building blocks for what could become the world's second -
largest emissions trading market.
Prof Guan said: «
In recent years, many researchers have proposed that consumption - based accounting be applied to re-allocate the responsibilities of mitigating climate
change because of the
large net
emission flows from developing countries to developed countries.
«The
change in administration doesn't
change the fact that the U.S. and China are the
largest emitters of greenhouse gas
emissions,» Sutley says.
Inertia toward continued
emissions creates potential 21st - century global warming that is comparable
in magnitude to that of the
largest global
changes in the past 65 million years but is orders of magnitude more rapid.
Nature Climate
Change published the analysis, which shows that policies with mandatory compliance are associated with the
largest reductions
in power plant
emissions.
Turetsky is the lead author of a paper published today
in Global
Change Biology based on one of the
largest - ever analyses of global methane
emissions.
Given the country's status of being the
largest greenhouse gas emitter
in the world, Greenpeace says, a tiny drop
in China's carbon
emissions could translate into a big
change in the international stage.
States like Texas with a
large power demand showed high
emissions of all pollutants, but smaller
changes in emissions per degree Celsius.
Land - use
change and agriculture are by far the
largest sources of greenhouse gas
emissions in Brazil, as forests and savannas are cut down for cattle pastures and cropland.
The focus of the debate on CO2 is not wholly predicated on its attribution to past forcing (since concern about CO2
emissions was raised long before human - caused climate
change had been clearly detected, let alone attributed), but on its potential for causing
large future growth
in forcings.
We ran two very
large «ensembles» of weather simulations, one representing conditions and «possible weather»
in the winter we have just had, and one representing the weather
in a «world that might have been» if we had not
changed the composition of the atmosphere through greenhouse gas
emissions.
Next month's University of California report warns that unless China radically
changes its energy policies, its increases
in greenhouse gases will be several times
larger than the cuts
in emissions being made by rich nations under the Kyoto Protocol.
«
Large - scale electric mobility could be crucial
in reducing CO2
emissions in the transport sector by one half by 2050,» says lead author Felix Creutzig, a researcher at the Mercator Research Institute on Global Commons and Climate
Change (MCC).
For example, the report summarizes recent research underpinning the scientific rationale for
large and rapid reductions
in global greenhouse gas
emissions,
in order to reduce the likelihood of dangerous human - induced climate
change.
But the annual amount of human - caused global
emissions of carbon dioxide, the main greenhouse gas driving climate
change, is now about 50 percent
larger than
in 1992.
CALSTART is eager to begin working with cities and transit properties that not only want to take full advantage of the advances
in zero
emission bus technology, but also wanted to become part of a
larger global effort to prevent climate
change,» said CALSTART President and CEO, John Boesel.
With the continuing fuel crisis and tighter
emissions regulations surrounding the automotive market, Honda engineers
changed their focus on the Accord as a Mustang competitor, and built upon the Civic's successful formula of economy, fuel efficiency and a front - wheel drive layout
in a
larger package.
Specifically, they say: «The implication is that,
in the absence of efficient,
large - scale capture and storage of airborne carbon (emphasis mine), carbon
emissions that have already occurred or will occur
in the near future result
in a commitment to climate
change that will be irreversible on timescales of centuries to millennia and longer.»
As has long been the situation
in these talks, the stances of these countries, the two dominant sources of greenhouse gas
emissions, largely shape prospects for the world at
large to move beyond the weak terms of the 1992 Framework Convention on Climate
Change and the limited scope of the Kyoto Protocol.
The sentence I just quoted implies pretty strongly that,
in the presence of efficient (or for that matter inefficient)
large - scale capture and storage of airborne carbon, carbon
emissions that have already occurred or will occur
in the near future might not result
in a commitment to climate
change that is irreversible on timescales of centuries to millennia and longer.
The destruction of tropical forests around the world is one of the
largest sources of
emissions contributing to climate
change, and deforestation rates
in Peru doubled
in 2012 from the previous year, accounting for nearly half its annual greenhouse gas
emissions.
page 30: «Current carbon dioxide
emissions are,
in fact, above the highest
emissions scenario developed by the Intergovernmental Panel on Climate
Change (IPCC), implying that if we stay the current course, we're heading for even
larger warming than the highest projections from the IPCC.»
Building on a history of working together to reduce air
emissions, Canada and the U.S., commit to take action to reduce methane
emissions from the oil and gas sector, the world's
largest industrial methane source,
in support of achieving our respective international climate
change commitments.
Gates hammered on points reported here for many years: that without a big, and sustained, boost
in spending on basic research and development on energy frontiers, the chances of triggering an energy revolution are nil; that while the private sector and venture capital investors are vital for transforming breakthroughs into marketable products or services, they will not invest
in the long - haul inquiry that's required to generate game -
changing breakthroughs; that a 1 or 2 percent tax on carbon - emitting fuels could generate a
large, steady stream of money for invigorating the innovation pipeline; that a declining
emissions cap and credit trading system --- if it could survive America's polarized politics --- would have to raise energy costs far beyond what would be politically tenable to generate a similar scale of transformational activity.
-- Given the continuing rise
in urban population, reducing carbon
emissions from transportation is considered a key factor
in trying to diminish climate
change problems caused by
larger and
larger cities.
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).
Thus the relaxation time will tend to be
larger for thinner layers — except for
changes in %
change in emission per K
change in temperature.
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.
The first is basically that mentioned by Greg Simpson
in point 7; the seasonal flux
in biomass seems to exceed the background rate of
change of CO2
in the atmosphere by a
large enough factor that it probably exceeds the total
emissions.
This «drop -
in» fuel is designed to be a direct replacement for gasoline and could lead to
large reductions
in both petroleum use and greenhouse gas
emissions; it can also be introduced without major
changes in fuel delivery infrastructure or vehicles.
Is the past 10 to 15 years — which have seen little net
change in the average surface temperature of the Earth despite ever -
larger carbon dioxide
emissions — an indication that climate
change will not be as bad as previously projected?
The coalition will also encourage the EPA to limit climate
change - causing carbon
emissions from fossil fuel power plants under the Clean Power Plan, push for federal controls on methane
emissions from the oil and natural gas industry, and work on controlling
emissions from
large - scale industry facilities, said the New York attorney general's office
in a statement.
If we do overshoot our carbon «budget»
in the next several decades, the only way to return atmospheric CO2 concentrations to levels that avoid climate
change will be to deploy
large - scale CDR projects capable of generating net «negative»
emissions:
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.
Above: the projected
emissions gap
in 2030
in the UNEP report shows that countries are not planning to make the necessary GHG
emissions reductions to avoid overshooting our carbon «budget», meaning that
large - scale CDR would be necessary to fill the gap and prevent climate
change.
«If there is a global agreement that requires
larger cuts
in emissions — and I think that would be good if there were, but it's got to be a global agreement — then obviously Australia would play its part and the government would consider what
changes or extensions or whatever to Direct Action would need to be made to achieve that,» he said then.
Kevin Rudd's announced
changes to the proposed Carbon Pollution Reduction Scheme has again split the climate movement, and this time it's very serious, with three
large, rusted - onto - Labor groups providing cover for an appalling policy that won't guarantee a reduction
in Australia's
emissions for decades.
The electricity industry transformation is driven
in large part by
changing customer preferences — specifically, ambitious greenhouse gas (GHG)
emissions targets — and the rising competition for their business.
2: Our
Changing Climate, Key Message 5).2 Regional climate models (RCMs) using the same
emissions scenario also project increased spring precipitation (9 %
in 2041 - 2062 relative to 1979 - 2000) and decreased summer precipitation (by an average of about 8 %
in 2041 - 2062 relative to 1979 - 2000) particularly
in the southern portions of the Midwest.12 Increases
in the frequency and intensity of extreme precipitation are projected across the entire region
in both GCM and RCM simulations (Figure 18.6), and these increases are generally
larger than the projected
changes in average precipitation.12, 2
India is one of the world's
largest contributors to global warming, but simple
changes in farm management can drastically cut
emissions while meeting food demand.
But that picture is rapidly
changing, because
emissions are flat to declining throughout the industrialized world, but increasingly rapidly
in the
large emerging economies,
in particular, China.
In the present work, a multidisciplinary approach is used to examine how contributions of H2SO4 and MSA to particle formation will change in a large coastal urban area as anthropogenic fossil fuel emissions of SO2 declin
In the present work, a multidisciplinary approach is used to examine how contributions of H2SO4 and MSA to particle formation will
change in a large coastal urban area as anthropogenic fossil fuel emissions of SO2 declin
in a
large coastal urban area as anthropogenic fossil fuel
emissions of SO2 decline.
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.