Not exact matches
On a more personal
level I'm of the opinion that the PA's content, which provides for some countries to completely not limit their
emissions, and absolute lack of any provisions in case of it failing to reach the agreed targets, as well as it's
very careful wording to that effect was entirely intentional.
Micronesia's argument was that
emissions from Prunerov are threatening its
very existence by contributing to global warming and, ultimately, raising sea
levels.
But in recent years, using X-ray
emissions as a measure of heat given off by powerful gravitational forces, they unexpectedly found that most SMBH accrete matter at
very low
levels.
1750 - 1850 did see coal use / CO2
emissions rise 18 - times bigger, but from a
very small start
level.
«It is
very satisfying to see how Polestar has been able to combine this
level of driving performance in their interpretation of the S60 and new V60, while upholding Volvo's original service program, class - leading safety features and certified fuel and
emission ratings.
Items such as high -
level encryption in ECUs, tire - pressure monitors, integrated axle carrier / ring gears and complicated diesel
emissions systems make it
very difficult for the aftermarket to come to market with performance - oriented modifications.
Yet even with this car's
emissions being on the
level, hitting the EPA standards and being thoroughly scrutinized, it's
very hard to get over the fact that once you say «diesel,» its stock drops.
CO2
emissions are also kept at a
very good
level, 99g / km to be more specific.
A 2012 report on particulates from gasoline vehicles by the European Joint Research Commission found that gasoline direct injection (GDI) vehicles consistently emit a
very high number of particles, with the actual
emission levels even approaching those of conventional diesels in some cases.
Selective catalytic reduction (SCR) technology cuts NOx
emissions to
very low
levels and the new XE has been engineered to meet the most stringent global regulations.
A four - cylinder, variable geometry turbo that delivers
very low fuel consumption and
emission levels despite its power surge.
The rise in CO2
emissions due to the burning of fossil fuels from 1880 through the 1940's was not sufficient to have played a major role in the considerable global temperature rise that took place during that period — so if we want to presume that sea
level rise is prompted by global temperature rise (along with concomitant melting of glaciers, etc.) then we can't really attribute
very much of the rise in sea
levels during that period to CO2.
I am
very skeptical that on a global population
level, humans will bother to do anything other than lip service when it comes to addressing climate change and the changes to our lifestyle required to significantly reduce our
emissions, until it is far too late.
However, it is important to keep in mind that we might easily more than double it if we really don't make much effort to cut back (I think the current estimated reserves of fossil fuels would increase CO2 by a factor of like 5 or 10, which would mean a warming of roughly 2 - 3 times the climate sensitivity for doubling CO2 [because of the logarithmic dependence of the resulting warming to CO2
levels]-RRB-... and CO2
levels may be able to fall short of doubling if we really make a
very strong effort to reduce
emissions.
He wrote a fascinating piece for the journal Science on the results of a study testing hundreds of
very smart M.I.T. students to see if they could draw an
emissions curve that would stop the
level of carbon dioxide in the atmosphere from rising.
Thus, the concept of an
emissions budget is
very useful to get the message across that the amount of CO2 that we can still emit in total (not per year) is limited if we want to stabilise global temperature at a given
level, so any delay in reducing
emissions can be detrimental — especially if we cross tipping points in the climate system, e.g trigger the complete loss of the Greenland Ice Sheet.
What is clear is that uncontrolled
emissions will
very soon put us in range of temperatures that have been unseen since the Eemian / Stage 5e period (about 120,000 years ago) when temperatures may have been a degree or so warmer than now but where sea
level was 4 to 6m higher (see this recent discussion the possible sensitivities of the ice sheets to warming and the large uncertainties involved).
Responding to the unequivocal scientific evidence that preventing the worst impacts of climate change will require Parties included in the Annex I to the Convention as a group to reduce
emissions in a range of 25 ---- 40 per cent below 1990
levels by 2020 and that global
emissions of greenhouse gases need to peak in the next 10 to 15 years and be reduced to
very low
levels, well below half of
levels in 2000 by 2050,
If you were to place an IR sensor in space, opposite the sun, to view the earth's surface you would clearly see a glowing surface of higher intensity on the left with a
very low
level emission on the right.
Garden equipment engines, which have had unregulated
emissions untill
very recently, emit high
levels of carbon monoxide, volatile organic compounds and nitrogen oxides, producing up to 5 % of the nation's air pollution and a good deal more in metropolitan areas.
Global
emissions peak before 2015 and decline to 80 % below 1990
levels by 2050, such that CO2 concentrations can peak below 420 ppm and then start to fall
very rapidly.
Volcanoes put out only a
very small amount of CO2 in comparison to our
emissions, which is why CO2
levels were (using accepted measurements, not Beck's nutty ones) quite constant for the last ~ 10,000 years... and haven't been above ~ 300ppm in at least the last 750,000 years.
The first is climate inertia — on
very many
levels, from fossil lock - in
emissions (decades), ocean - atmospheric temperature inertia (yet more decades), Earth system temperature inertia (centuries to millennia) to ecological climate impact inertia (impacts becoming worse over time under a constant stress)-- all this to illustrate anthropogenic climate change, although already manifesting itself, is still
very much an escalating problem for the future.
I also asked Gary Hnatowich about anhydrous ammonia fertilizer and the reports that it could produce
very high
levels of N2O
emissions compared to urea.
It could also reduce our greenhouse gas
emissions to
very low
levels, comparable to the
emissions before the industrial revolution.
One reason for being confident about there being much more uncertaintly than the 97 % concensus suggests is that there is nothing like a concensus, let alone proof, of what caused (and causes) the extreme natural variations in climate throughout geological time.This variation is well documented and almost certainly has a variety of underlying causes which are likely to be
very different from C02 or other MM
emissions even if higher greenhouse gases
levels have often been present.
Double or even triple pre-industrial CO2
levels are inevitable by the end of the century unless
emissions are
very radically cut.
For example, stormwater across the city of Milwaukee recently showed high human fecal pathogen
levels at all 45 outflow locations, indicating widespread sewage contamination.87 One study estimated that increased storm events will lead to an increase of up to 120 % in combined sewer overflows into Lake Michigan by 2100 under a
very high
emissions scenario (A1FI), 57 leading to additional human health issues and beach closures.
This is true because most mainstream scientists have concluded that the world must reduce total global
emissions by at the
very least 60 to 80 percent below existing
levels to stabilize GHG atmospheric concentrations at minimally safe atmospheric GHG concentrations and the United States is a huge emitter both in historical terms and in comparison to current
emissions levels of other high emitting nations.
These patterns arise because at high
emissions levels the total Antarctic contribution to SLR equals or exceeds the sea -
level content of the WAIS in most simulations, so
very few simulations must be filtered out from the triggered case, making it nearly identical to the baseline case.
If you plot the 2 graphs man's
emissions per year vs CO2
levels emissions per year you get
very little correlation between the 2.
Furthermore, Gillett et al.'s central estimate of the transient response, 1.3 °C,
very closely matches the 1.2 °C and 1.5 °C alternative IPCC estimates of warming per 1,000 GtC after 1,000 y from the end of
emissions, assuming a midrange equilibrium climate sensitivity of 3 °C to the doubling of preindustrial carbon
levels (6).
Small islands, for example, are a paltry source of carbon
emissions and yet are disproportionately affected by the consequences of global carbon overload as accelerated sea
level rise threatens the
very existence of low - lying islands.
In spite of these
very fundamental uncertainties, the Kyoto Protocol, adopted in 1997, insists on lowering
emissions in the hope of reaching stabilization at some
level, preferably one that is not too high.
However, it's
very clear that The Economist does * not * «equate» uncertainty about climate sensitivity with uncertainty about
emission levels.
Carbon
emissions probably have
very little effect on climate, and are unstoppable at a practical political
level short of nuking the whole of India and China anyway.
They wrote (as quoted by you): «But given how little is known about either the climate's sensitivity to greenhouse - gas
emissions or about future
emissions levels,...» The use of the word «either» makes it
very clear that The Economist knows that uncertainty about climate sensitivity is * not * the same thing as (or «equal to») uncertainty about
emissions.
That the USA could greatly reduce its carbon
emissions is shown by a comparison with the UK, Germany, Italy and France, countries with similar standards of living and
very similar climates, but much lower per capita
levels of
emission.
This means that we are on the
very low end of the range of carbon
emissions and CO2
levels MAGICC was designed for.
The carbon dioxide
level is up 40 percent already,
emissions are rising rapidly, and global negotiations to limit them have not been
very successful.
Parkes and his colleagues ran simulations of a «
very mild form» of climate change where carbon
emissions rise by 1 % a year until atmospheric concentrations reach double pre-industrial
levels (560 parts per million, ppm).
Russia received the 2nd Place Fossil for
very significant weakening of its
emissions reduction commitment from 25 % to 15 % of 1990
levels if land use, land use change and forestry (LULUCF) is not counted.
The second is the urgency of the need for hard - to - imagine action to dramatically reduce greenhouse gas (ghg)
emissions at all scales, that is globally, nationally, and locally, but particularly in high - emitting nations such as the United States in light of the limited amount of ghgs that can be emitted by the entire world before raising atmospheric ghg concentrations to
very dangerous
levels and in light of the need to fairly allocate ghg
emissions reductions obligations around the world.
Although there is considerable scientific evidence that limiting warming to 1.5 degrees C is necessary to prevent
very dangerous warming, a fact implicit in the recent Paris Agreement in which nations agreed to work to keep warming as close as possible from exceeding 1.5 degrees C additional warming, if the international community seeks to limit warming to 2 degrees C it must assure that global
emissions do not exceed the number of tons of CO2
emissions that will raise atmospheric concentrations to
levels that will cause warming of 2 degrees C.
The radiative forcing estimates are based on the forcing of greenhouse gases and other forcing agents.5 The four selected RCPs were considered to be representative of the literature, and included one mitigation scenario leading to a
very low forcing
level (RCP2.6), two medium stabilization scenarios (RCP4.5 / RCP6) and one
very high baseline
emission scenarios (RCP8.5).
The
emission pathway is representative of scenarios in the literature that lead to
very low greenhouse gas concentration
levels.
I ask because, while i feel fairly confident that i can put an argument forward that defends the main stream theory of GW (man's co2
emissions is causing it) on a
very basic
level, I'd like to extend that arguing ability to a point where i can say to a critic that X cant be the cause, nor Y, nor Z, and therefore you have nothing.
The climate problem is
VERY serious To reduce risks to a tolerably low level, we need to reduce emissions immediately and rapidly While this is not prohibitively expensive in a conventional economic sense, it is not free, and it is potentially very redistributive Global cooperation requires a solution that is «fair enough&ra
VERY serious To reduce risks to a tolerably low
level, we need to reduce
emissions immediately and rapidly While this is not prohibitively expensive in a conventional economic sense, it is not free, and it is potentially
very redistributive Global cooperation requires a solution that is «fair enough&ra
very redistributive Global cooperation requires a solution that is «fair enough»
Compared with the potential feedbacks from fossil methane or methane hydrates, the permafrost feedback from surface thawing is more certain and will happen sooner,
very likely in this century, regardless of the
level of future human carbon
emissions.
As we have seen above, the commitments made according to the Copenhagen Accord and Cancun agreements that have been ratified by the Cancun agreements leave at the
very minimum a 5Gt gap between
emissions levels that will be achieved if there is full compliance with the voluntary
emissions reductions and what is necessary to prevent 2 °C rise, a warming amount that most scientists believe could cause
very dangerous climate change.