But tar sands beats this —
with emissions roughly three times that of conventional oil.
Not exact matches
With oil sands operations currently emitting
roughly 70 Mt / year, the Alberta Climate Leadership Plan leaves «room» for
emissions from the oil sands to grow by 30 Mt / year.
The next step will be scaling up the whole unit, making it capable of capturing CO2
emissions associated
with 235 megawatts of the plant's power, or
roughly one fifth of its output, Sherrick says.
Worldwide, carbon storage has the capability to provide more than 15 percent of the
emissions reductions needed to limit the rise in atmospheric CO2 to 450 parts per million by 2050, an oft - cited target associated
with a
roughly 50 - percent chance of keeping global warming below 2 degrees, but that would involve 3,200 projects sequestering some 150 gigatons of CO2, says Juho Lipponen, who heads the CCS unit of the International Energy Agency in Paris.
The new rules will be phased in starting in 2012 and require a
roughly 5 percent cut in greenhouse gas
emissions, along
with a boost in fuel efficiency every year thereafter.
Beyond Kerosene The amount of
emissions from aircraft compared
with other vehicles is relatively small —
roughly 3 percent of total worldwide greenhouse gas
emissions from fossil fuel burning, according to the U.N. Intergovernmental Panel on Climate Change (IPCC)-- nonetheless it has a major impact on the climate.
According to the recent Snow, Water, Ice and Permafrost in the Arctic report, if we reduce
emissions roughly in line
with the Paris Agreement, we would see an additional 54 centimeters of global sea level rise by 2100.
CO2
emissions of 126g / km are reasonable, but
roughly on a par
with a more powerful 1.4 TSI Audi Q2.
On the overarching question of «solving» the climate problem, I'm sure Joe would agree that global warming is inevitably going to be, at best, managed — not «fixed» — given the trajectories for
emissions in a world inexorably headed toward
roughly nine billion people seeking energy - enabled lives and
with substantial warming already in the pipeline, according to a heap of research.
I once worked out an
emissions schedule for keeping CO2 concentration fixed, initial reductions had to be steep,
roughly 50 % so that instantaneously sinks equal
emissions, but as the sinks
with short time constants are saturated quickly, the slower sinks begin to dominate.
As GWPs are concerned
with a GHG
emission today and as the Forcing of CO2 is logarithmic, the averaged 1750 - 2011 values would be
roughly 25 % too low (so 28 becomes 37).
Clearly the United States (
with roughly 23 % of global CO2
emissions has some «splainin to do when it comes to carbon dioxide
emissions, so don't get us wrong, we aren't trying to pass the buck.
And, according to the report, California is already on the way to the massive
emissions reductions: «California can achieve
emissions roughly 60 percent below 1990 levels
with technology we largely know about today if such technology is rapidly deployed at rates that are aggressive but feasible.»
But the required reduction of
emissions intensity by 40 to 45 percent in 2020 compared
with the level of 2005 means the
emissions of [greenhouse gases] in 2020 has to be
roughly the same as
emissions now,» Qi Jianguo, of the Chinese Academy of Social Sciences, told Xinhua.
Together, these changes in energy and land use result in a
roughly 90 % reduction in greenhouse gas
emissions,
with the remaining 10 % offset by the third use of our land — capturing carbon in trees and other natural habitats.
Roughly half of new and existing heavy - duty diesel vehicles are currently subject to world - class
emission standards
with diesel particle filters and the aim it so ensure that the remaining unregulated or inadequately regulated half of global diesel fleet will achieve the same.
We know quantitatively, albeit
roughly, from the work of Tyndall in the 1850s the extent to which CO2 itself,
with no feedbacks, blocks the passage of thermal radiation; these days we infer this much more precisely from the HITRAN tables of spectral absorption /
emission lines.
Among countries that bear the greatest responsibility for CO2
emissions, 58 % of Chinese voice support for lifestyle changes to cope
with climate change, as do
roughly two - thirds of Americans (66 %).
Manufacturing a typical 5 - kilowatt (kW) solar energy system produces about 10 metric tons of CO2, so the total CO2
emissions associated
with removing one tree and installing a residential solar power system are
roughly 10.5 metric tons.
(3) Is supported by the period of» global brightening» which occurred
roughly simultaneously
with significant reductions in aerosol
emissions (around 1985), and which ended when Eastern
emissions began to increase.
If you are fully familiar
with the figures, which show natural
emissions are
roughly 30 times larger than human
emissions, then I suggest you consider the honesty of your statement.
Currently, carbon dioxide
emissions are
roughly 36.7 billion,
with a B, metric tons a year or 90 million metric tons a day.
You don't just drop the PV panels in a field and forget them, but must give them a solid base — typically concrete,
with roughly 1 kg CO2e
emissions per kg — must empoly someone at least to polish them occasionally, and at the end of their useful life they must be removed and replaced, and their materials disposed or or recycled.
«California can achieve
emissions roughly 60 percent below 1990 levels
with technology we largely know about today if such technology is rapidly deployed at rates that are aggressive but feasible,» the report says.
A combination of these
with other technologies, including materials substitution, reduced aerodynamic drag, reduced rolling resistance, reduced engine friction and pumping losses, has the potential to approximately double the fuel economy of «new» light - duty vehicles by 2030, thereby
roughly halving carbon
emissions per vehicle mile travelled (note that this is only for a new car and not the fleet average)(medium agreement, medium evidence)[5.3.1].
Each higher and cooler layer in turn emits thermal radiation corresponding to its temperature; and much of that also escapes directly to space around the absorption bands of the higher atmosphere layers; and so on; so that the total LWIR
emission from the earth should then be a composite of
roughly BB spectra but
with source temepratures ranging ove the entire surface Temeprature range, as well as the range of atmospheric emitting Temperatures.
It seems to me that any layer from the surface to the highest limits of the atmosphere is radiating some
roughly blackbody looking spectrum corresponding to its own Temperature; and much of that spectrum exits directly to space (assuming cloudless skies for the moment)
with a spectrum corresponding to the
emission temperature of that surface; but now
with holes in it from absorption by GHG molecules or the atmospheric gases themselves.
And while methane is a potent greenhouse gas, its lifetime in the atmosphere is
roughly a decade, so we won't be living
with the consequences for nearly as long as those from CO2
emissions.
This is
roughly on par
with Washington State's current total
emissions in one year.
The highest pathway, RCP 8.5,
roughly similar to a continuation of the current path of global
emissions increases, is projected to lead to more than 8 °F warming by 2100,
with a high - end possibility of more than 11 °F.
For the G20 countries — responsible for
roughly three quarters of global
emissions — the Gap Report compares their projected 2020
emissions with their pledges.
(2) an anthropic part
roughly equal to the cumulative anthropic
emissions weighted by exp (t» - t) / u) where t» is the time of the
emission and t the time of observation, u is the life time of about 5 years perfectly consistent
with delta13C isotopic observations; this anthropic part is (end 2013) about 6 % of the CO2 content of the air (cards n ° 3 & 4).
The specter you need to envision is what happens when the world goes from
roughly 1,000,000,000 people (current population of industrialized nations)
with large CO2 / capita
emissions to
roughly 10,000,000,000 (guestimate of peak population).
The carbon dioxide
emissions associated
with coal - to - liquid fuel are
roughly double those from conventional oil.
The total
emission in 2006 of the US is
roughly 20 % of the world's
emission,
with decreasing fraction because of the increase in India, China, and Russia.
Actually, 1945 or 1946 would serve equally, because those years are
roughly the CO2
emissions inflection point if the US EPA is to be trusted
with their analysis.
In fact the CO2 increase has been
roughly linear since the 1950's,
with the 1993 - 2010 rate only slightly higher than the preceding years, while our
emissions have seen strongly nonlinear growth.
So given the above caveat, which should be ringing loud in your ears,
roughly the fossil fuel
emissions vaguely average out to half of the amount [2 ppm equals 16 billion tonnes of CO2 - and 33.5 divided by 2 is
roughly, 16 [though there various persons which could provide you
with numbers to a couple decimal points].
To maintain a
roughly apples - to - apples comparison
with my coal
emissions calculation, I didn't factor in
emissions from shipping, refining, distributing, constructing the pipeline, or any other related activities.
Even
with unrealistically generous assumptions, the unimpressive net effect is that solar power reduces Germany's CO2
emissions by
roughly 8 million metric tons — or about 1 percent — for the next 20 years.
Because of the combination of high absorption, a regional distribution
roughly aligned
with solar irradiance, and the capacity to form widespread atmospheric brown clouds in a mixture
with other aerosols,
emissions of black carbon are the second strongest contribution to current global warming, after carbon dioxide
emissions.
Furthermore, though currently
emissions are
roughly split between developed nations and the developing world, by 2030 the scale would solidly tip,
with 25.8 billion tonnes coming from the developing world and 14.6 billion tonnes from the developed.
I had seen a written interview
with Steinacher shortly after the study was published, and his bottom line was that
emissions reductions would have to be
roughly doubled over those from the temperature - only case.
The body charged
with establishing a framework for a global climate treaty will account for
emissions from peatlands degradation, a source of
roughly 6 percent of greenhouse gas
emissions.
(06/10/2010) The body charged
with establishing a framework for a global climate treaty will account for
emissions from peatlands degradation, a source of
roughly 6 percent of greenhouse gas
emissions.
Model - average mean local precipitation responses also
roughly scale
with the global mean temperature response across the
emissions scenarios, though not as well as for temperature.
If air travel were a country, it would be
roughly on par
with Germany in
emissions.
At the current rate of
emissions, this would allow
roughly six years until the entire 1.5 C budget is exhausted,
with a range of zero to 11 years across all the models.