Sentences with phrase «current emissions rates»

In fact, continuation of current emissions rates would lead to even more warming than shown in the higher emissions case shown here (A2).

there are far more constructive ways to look at this historical and current emissions rates.

Since the world is now emitting carbon dioxide equivalent emissions at approximately 10 metric gigatons per year, the world will run out of emissions under the budget in approximately 25 years at current emissions rates.

GtC per year, the US will have zero emissions to allocate to itself in 9.4 years at current emissions rates.

The time period we have left at current emissions rates would be reduced by 6 years, to as little as 16 years, if we give ourselves a two - thirds chance of staying below two degrees, once we factor in carbon cycle feedbacks.

That is not much more than a decade's worth at current emissions rates.

«At current emission rates models suggest that all coral reefs and polar ecosystems will be severely affected by 2050 or potentially even earlier,» they wrote.

That is low relative to the current emissions rate, but possibly a reasonable estimate once all anthropogenic emissions are included.

According to a new study published last week in Nature Geoscience, at current emission rates the trillionth ton of CO2 from human activity would be thrown into the atmosphere in about 30 years.

This means that, at current emission rates, we might be able to double CO2 concentration in ~ 4000 years.

Preindustrial levels were about 280 parts per million (ppm), we're at nearly 400 ppm now and at current emission rates, we're due to hit 560 ppm soon after 2050.

The researchers set the experiment to create a carbon dioxide level of 560 parts per million (ppm), which at current emission rates we're due to reach soon after 2050.

Or, the forcing will reach 3.7 W / m2 by about 2050 at current emission rates as CO2 only needs to reach 470 ppm.

michael hart, that may be, but as the emission rate rises, the equilibrium level where they balance rises too, and we are well below the equilibrium level even for the current emission rate.

A new study indicates that if current emission rates of greenhouse gases continue, leaves will begin to appear an average of 21 days earlier nationally by 2100 compared to recent trends.

Because carbon dioxide accumulates in the atmosphere and some part of it stays there essentially forever, historic emissions matter more than current emission rates.

I think it is still possible to meet this, but it requires a linear reduction of 3 Gt CO2 per decade (10 % of the current emission rate) for the next century to get finally to zero emission at the trillion tonne limit, and it would end up at about 500 ppm in the atmosphere.

[11] Recent estimates also suggest that at current emission rates the Earth could pass a threshold of 2 °C global warming, which the United Nations» IPCC designated as the upper limit to avoid «dangerous» global warming, by 2036.

Arctic sea ice is decreasing at an average rate of 3.0 ± 0.3 m2 per metric ton of CO2 emissions and at the current emissions rate of 35 gigaton per year could completely disappear by 2050 during Septembers [39].

Not exact matches

But new models show that at the current rates of greenhouse gas emissions, warming seas will push these foraging grounds much farther south.

From there, the researchers estimated that the carbon stored in Central Congo Basin's peat is equivalent to about 20 years of fossil fuel emissions from the United States, at current rates.

That means the atmosphere in 2100 would hold an extra 4 1/2 years» worth of carbon dioxide emissions from fossil fuel burning at current rates,...

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.

At the current rate of growth, CO2 emissions from shipping will double by 2050.

That means the atmosphere in 2100 would hold an extra 4 1/2 years» worth of carbon dioxide emissions from fossil fuel burning at current rates, the researchers report in the Sept. 23 Science.

Computer models peg ocean acidity at 7.8 to 7.7 by the end of the century at the current rate of greenhouse gas emissions.

«Our model assumes «business as usual» in the province, with high carbon emissions and climate change continuing at the current rate.

«At current rates of emissions, about 45 - 56 percent of all the natural vegetation in the state is at risk, or from 61,190 to 75,866 square miles,» said lead author James Thorne, a research scientist with the Department of Environmental Science and Policy at UC Davis.

If greenhouse gas emissions continue on their current trend, the rate of warming will reach 0.7 °F per decade and stay that high until at least 2100.

On time - scales of a few decades, the current observed rate of warming can be used to constrain the projected response to a given emissions scenario despite uncertainty in climate sensitivity.

Mass bleaching and mortality are identified as the current crisis to corals, and based on the current rate of increase in global CO2 emissions (now exceeding 3 % per year), most reefs world - wide are committed to an irreversible decline.

In other words, if greenhouse gas emissions continue at current rates, the world would see an extreme La Niña event every 13 years, rather than every 23 years.

A long - term experiment revealed that growth declined and individual branches were damaged when the water was undersaturated with aragonite (Ω < 1)-- a condition that could be achieved in 2100, according to model calculations of the IPCC in case emissions continue to develop at current rates.

The aforementioned scenario only applies if local emissions of smog - forming gases continue under current rates.

Potential annual damages are shown on the county - level in a scenario in which emissions of greenhouse gasses continue at current rates.

Choosing the six - speed automatic gearbox means a small sacrifice in efficiency — fuel economy drops to 42.2 mpg and CO2 emissions go up to 177g / km for a higher annual tax bill of # 230 at current rates.

With yearly emissions at around 40 gigatons of CO2, this leaves no more than five years at current rates of emissions.

As NOAA's Mauna Loa measurement of atmospheric methane concentrations are only currently increasing at a rate of approximately 0.25 % per year (or 12.5 % change in 50 - years); how could anyone be concerned that the change in atmospheric methane burden in 50 - years could be 300 % (as per Isaken et al (2011) case 4XCH4; which would require an additional 0.80 GtCH4 / yr of methane emissions on top of the current rate of methane emissions of 0.54 GtCH4 / yr)?

And CO2 levels also will begin to drop significantly when the emissions are cut to a small portion of the current rate, cuts that may take two or three decades to appear.

In this case, science does tell us what to do (reduce CO2 emissions: we can argue about the amount and rate but this argument should be along the lines: «do we reduce by 70 % or 90 % over current levels by 2050?).

Yet, as Ashley Ballantyne's work shows, current vegetation levels are still soaking up about have the carbon emissions, even as emission rates have increased.

However, it is not inconceivable that the current rate of growth of 1.4 % / yr in fossil - fuel related emissions could reach 2 % / yr or more due to rapid economic growth in the developed world.

Even if the current doubling rate for CO2 emissions (~ 20 years, from the same website) holds for India, it will take 80 years for India to catch up in per capita CO2 emissions with the USA (assuming no increase in the US per capita emissions).

The thermal inertia lag is nontrivial — it means that current temperature is less than the equilibrium temperature expected from current forcing by a factor of tau * g, where tau = time constant of thermal inerta and g = growth rate of emissions.

As I stated in another thread, most of the changes that will let us move beyond our current rate of GHG emissions will happen outside of the control of the individual consumer.

Current HCV rates of carbon emission into the atmosphere is estimated to be 100 - 150 greater than even those massive PETM eruptions 55 million years ago.

The same style of thinking has established that it could take just 45 days for the heat from released carbon dioxide to outpace the initial combustion that released it, and that at current fossil fuel emission rates, all the ocean's coral reefs would be at risk within this century.

That's what my calculation suggests, but over on the other thread, tonto points out that if uptake continues at the current rate (which would make sense if it is a concentration - dependent process) then halving emissions could bring the net change in concentration down to zero — basically, since half of our emissions are now going into sinks, if we cut emissions in half, all of it would.

Chris V: your At the current rates of CO2 emissions, some of us will live to see CO2 levels that are double pre-industrial levels.

Their unwillingness to take immediate action is intellectually and morally bankrupt because unless carbon emissions are stopped very soon (remember that the damage is cumulative so continuing to emit at current of even reduced rates still causes additional damage hundreds if not thousands of years into the future.)