Sentences with phrase «increase in warming how»

Of the 50 % increase in warming how much of that was attributed to the Poles and how much from Africa?

Not exact matches

«When the temperature increases in the tropics, whether you move north or south, there is no change in the temperature,» he said, describing how tropical regions generally warm evenly.

For almost 100 years, Science News has been reporting the latest advances in science, such as this week's cover story by reporter Laurel Hamers, «When bogs burn, the environment takes a hit,» on how the increased frequency of bog fires worldwide is becoming a surprisingly large source of air pollution and climate - warming carbon dioxide.

It increases the ability to predict how changes in land use or climate warming could affect the sources and global concentrations of greenhouse gases in the atmosphere.

In each case they ran the model for 100 years to see how much the world warmed as CO2 levels increased.

Dr Stephen Grimes of Plymouth University, who initiated the research project, highlighted the climate changes that must have caused this increase in sediment erosion and transport — «We have climate model simulations of the effect of warming on rainfall during the PETM event, and they show some changes in the average amounts of rainfall, but the largest change is how this rainfall is packaged up — it's concentrated in more rapid, extreme events — larger and bigger storms.»

By studying the relationship between CO2 levels and climate change during a warmer period in Earth's history, the scientists have been able to estimate how the climate will respond to increasing levels of carbon dioxide, a parameter known as «climate sensitivity».

But beyond the increased amount of precipitation, Wehner adds, «this study more generally increases our understanding of how the various processes in extreme storms can change as the overall climate warms.»

In addition, our deficient understanding of aerosol forcing also hinders our ability to use the modern temperature record to constrain the «climate sensitivity» — the operative parameter in determining exactly how much warming will result from a given increase in CO2 concentratioIn addition, our deficient understanding of aerosol forcing also hinders our ability to use the modern temperature record to constrain the «climate sensitivity» — the operative parameter in determining exactly how much warming will result from a given increase in CO2 concentratioin determining exactly how much warming will result from a given increase in CO2 concentratioin CO2 concentration.

For the first time, scientists have shown a direct link between rising levels of carbon dioxide — or CO2 — in Earth's atmosphere and an increase in how much solar energy warms the ground.

Clearly Antarctica is supposed to warm in the future as greenhouse levels increase (and ozone loss decreases), but it is unclear just how it should be behaving to date.

The Hadley Centre has calculated the massive increase in atmospheric CO2 levels if the Amazon was to die back as a result of global warming (climate models differ on how likely this is, I understand).

The silicate + CO2 - > different silicate + carbonate chemical weathering rate tends to increase with temperature globally, and so is a negative feedback (but is too slow to damp out short term changes)-- but chemical weathering is also affected by vegetation, land area, and terrain (and minerology, though I'm not sure how much that varies among entire mountain ranges or climate zones)-- ie mountanous regions which are in the vicinity of a warm rainy climate are ideal for enhancing chemical weathering (see Appalachians in the Paleozoic, more recently the Himalayas).

The World Energy Outlook 2016, released last week, is just one among an increasing line of studies showing how nations need to slow and, ultimately, phase out investment in new fossil fuel supply infrastructure — from oil fields and pipelines to coal mines — if they are serious about keeping warming to 2C or less.

The purpose of my research is to understand how plants respond to changes in their environment, such as increases in CO2 or global warming.

Heat trapping greenhouse - gas emissions are the obvious culprit, since they've increased dramatically over that same 50 years, but scientists prefer hard evidence to presumption, so a team from the British Antarctic Survey has been drilling into ancient ice to see how the current warming stacks up against what happened in the ancient past.

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Therefore, IMHO, it would be closer to the truth to call WUWT a «skeptic» site that calls into question exactly how much the mean temperature has increased since the advent of the thermometer record in the late 1880's, how much of that is due to human activities and how much to natural cycles not under our control, what dangers rising temperatures may pose to human life and civilization, and what technologically and politically doable actions may be taken to reduce human - caused warming, and our dependence on foreign sources of fossil energy.

[1] CO2 absorbs IR, is the main GHG, human emissions are increasing its concentration in the atmosphere, raising temperatures globally; the second GHG, water vapor, exists in equilibrium with water / ice, would precipitate out if not for the CO2, so acts as a feedback; since the oceans cover so much of the planet, water is a large positive feedback; melting snow and ice as the atmosphere warms decreases albedo, another positive feedback, biased toward the poles, which gives larger polar warming than the global average; decreasing the temperature gradient from the equator to the poles is reducing the driving forces for the jetstream; the jetstream's meanders are increasing in amplitude and slowing, just like the lower Missippi River where its driving gradient decreases; the larger slower meanders increase the amplitude and duration of blocking highs, increasing drought and extreme temperatures — and 30,000 + Europeans and 5,000 plus Russians die, and the US corn crop, Russian wheat crop, and Aussie wildland fire protection fails — or extreme rainfall floods the US, France, Pakistan, Thailand (driving up prices for disk drives — hows that for unexpected adverse impacts from AGW?)

In other words, it is not enough to simply say «we know that increasing CO2 levels will make the world warmer and that is a bad thing», you need to be able to specify how much warmer and quantify the impacts with some level of precision.

This week, PNAS published our paper Increase of Extreme Events in a Warming World, which analyses how many new record events you expect to see in a time series with a trend.

What he disputes is that there is a legitimate consensus on how much warming will result from a given increase in CO2 levels.

Under a graphic in his Blog Post showing how easily it is for a tenfold increase in «extreme hot weather» to occur, Mass concludes «So the result is that you seem more warm temperature records and less cold temperature records.

In our study we were first interested in how the observed local warming trend in Moscow would have increased the number of expected heat records — regardless of what caused this warming trenIn our study we were first interested in how the observed local warming trend in Moscow would have increased the number of expected heat records — regardless of what caused this warming trenin how the observed local warming trend in Moscow would have increased the number of expected heat records — regardless of what caused this warming trenin Moscow would have increased the number of expected heat records — regardless of what caused this warming trend.

Because that's about how much time we have to stop the increase in greenhouse gas emissions and begin steep reductions that will bring emissions to near zero within another ten years at most, if we are to have any hope of avoiding the most catastrophic consequences of global warming.

But the sheer rate of increase over just the past 55 years shows how fast global warming could hit us in the future — and the present — and underscores how much we've failed as a planet to slow down carbon emissions.

None of this contradicts the piece on SKS, which is dealing solely with how long it takes for the oceans to warm fully in response to the increase in atmospheric temperature.

However, given a particular increase in greenhouse gases, we can say reasonably precisely how much it will warm.

Now that global warming is underway, how do government meteorologists and hydrologists use ensemble forecasting to account for increasing potentials for high intensity rainfall in fall and winter months?

Please tell us how many degrees of warming we can expect from a 10 ppmv increase in atmospheric CO2 if no other climate factors are varied.

If you were in a situation where there was initially more precipitation than radiative cooling could handle, then the atmosphere could just warm up until the radiative cooling increased — though then you'd have to worry about how much the warming affects precipitation, etc..

If an increase in extreme weather events due to global warming is hard to prove by statistics amongst all the noise, how much harder is it to demonstrate an increase in damage cost due to global warming?

How gentlemanly is it that on his blog he falsely accused us of cherry - picking the last 100 years of data rather than using the full available 130 years in our PNAS paper Increase of extreme events in a warming world, even though we clearly say in the paper that our conclusion is based on the full data series?

-- How about THIS: «Thus the weight of evidence points to increasing potential intensity in the region where Pam developed, and consistent with this, increasing intensity of the highest category storms based on satellite - derived measurements» — How about THIS: «All of this is consistent with the strengthening consensus that the frequency of high category tropical cyclones should increase as the planet warms (Knutson et al., 2010).»

If only enough problems can be found, global warming will go away «David Stockwell: if removing the contaminated stations reduced the 20th century increase to the point there was no increase in temperature, how could that possibly improve model fit, when the models show an increase of 0.5 deg?»

Warming must occur below the tropopause to increase the net LW flux out of the tropopause to balance the tropopause - level forcing; there is some feedback at that point as the stratosphere is «forced» by the fraction of that increase which it absorbs, and a fraction of that is transfered back to the tropopause level — for an optically thick stratosphere that could be significant, but I think it may be minor for the Earth as it is (while CO2 optical thickness of the stratosphere alone is large near the center of the band, most of the wavelengths in which the stratosphere is not transparent have a more moderate optical thickness on the order of 1 (mainly from stratospheric water vapor; stratospheric ozone makes a contribution over a narrow wavelength band, reaching somewhat larger optical thickness than stratospheric water vapor)(in the limit of an optically thin stratosphere at most wavelengths where the stratosphere is not transparent, changes in the net flux out of the stratosphere caused by stratospheric warming or cooling will tend to be evenly split between upward at TOA and downward at the tropopause; with greater optically thickness over a larger fraction of optically - significant wavelengths, the distribution of warming or cooling within the stratosphere will affect how such a change is distributed, and it would even be possible for stratospheric adjustment to have opposite effects on the downward flux at the tropopause and the upward flux aWarming must occur below the tropopause to increase the net LW flux out of the tropopause to balance the tropopause - level forcing; there is some feedback at that point as the stratosphere is «forced» by the fraction of that increase which it absorbs, and a fraction of that is transfered back to the tropopause level — for an optically thick stratosphere that could be significant, but I think it may be minor for the Earth as it is (while CO2 optical thickness of the stratosphere alone is large near the center of the band, most of the wavelengths in which the stratosphere is not transparent have a more moderate optical thickness on the order of 1 (mainly from stratospheric water vapor; stratospheric ozone makes a contribution over a narrow wavelength band, reaching somewhat larger optical thickness than stratospheric water vapor)(in the limit of an optically thin stratosphere at most wavelengths where the stratosphere is not transparent, changes in the net flux out of the stratosphere caused by stratospheric warming or cooling will tend to be evenly split between upward at TOA and downward at the tropopause; with greater optically thickness over a larger fraction of optically - significant wavelengths, the distribution of warming or cooling within the stratosphere will affect how such a change is distributed, and it would even be possible for stratospheric adjustment to have opposite effects on the downward flux at the tropopause and the upward flux awarming or cooling will tend to be evenly split between upward at TOA and downward at the tropopause; with greater optically thickness over a larger fraction of optically - significant wavelengths, the distribution of warming or cooling within the stratosphere will affect how such a change is distributed, and it would even be possible for stratospheric adjustment to have opposite effects on the downward flux at the tropopause and the upward flux awarming or cooling within the stratosphere will affect how such a change is distributed, and it would even be possible for stratospheric adjustment to have opposite effects on the downward flux at the tropopause and the upward flux at TOA).

Re 392 Chris Dudley — I don't understand what you mean by R ^ 2T ^ 4 — and there should be something about how optical depth is proportional to R, and also, if you're going a significant distance toward the center of such an object, there is the issue of spherical geometry; if the optical thickness is large enough across small changes in radius, then you don't need to account for the spherical geometry in the calculation of the flux per unit area as a function of the temperature profile and optical thickness; however, the flux per unit area outward will drop as an inverse square, except of course within the layers that are being heated through a different process (SW heating for a planet, radioactivity, latent and sensible heat loss associated with a cooling interior, gravitational potential energy conversion to enthalpy via compression (adiabatic warming) and settling of denser material under gravity (the later both leads to compression via increased pressure via increased gravity within the interior, and also is a source of kinetic energy which can be converted to heat)...

But I also think it is important to increase our efforts in making further progress in terms of our ability to get a clearer picture of how a global warming may affect the local climate and what that may mean for adaptation.

I'm not sure if I'm getting this right, but from what I understand from earlier discussions is that the sensitivity re how much warming happens given a certain increase in CO2 (if we could know exactly what it is) stays the same or decreases somewhat with increased CO2e input.

If ocean heat is increasing there is presumably an absolute increase in warming and we can look at SW and IR — as well as TSI — to see how the system is changing.

and how about nasa's recent report of the apparent arctic ocean gyre reversal to clockwise that is underway — that the counterclockwise gyre of the arctic ocean rotation (since 1989) which apparently also been largely responsible for centrifigally pushing arctic ice into warmer waters, speeding melting — should now predictably result in increasing amounts of ice due to the centripetal pull of the ice toward the north pole?

Scientists generally agree that climate change will increase the likelihood of extreme weather events, but the jury is still out on how tornadoes will fare in a warming world.

Climate sensitivity is the estimate of how much the earth's climate will warm in response to the increased greenhouse effect if we double the amount of carbon dioxide in the atmosphere.

Climate models try to project how this global warming will continue, but they differ in their response to increasing concentrations of greenhouse gases.

Along the path, Kelsey shows us how climate change is affecting Oregon — from the change in the water cycle due to warming temperatures, to the increase in forest fires.

Failing you or anyone bringing me such relevant test results, on a balance sheet, showing me exactly how much warming and how much cooling the increase in CO2 causes, common sense would tell me that 50 - 100 ppm of a change in concentration of any one particular gas in the atmosphere, especially one on which all of our life and food (and drinks) depends, can not make much of any difference whatsoever.

I can see how it might be reconciled with a relatively short - term «hiatus» (if you must) in the trend of significant increase in surface temperatures, but not with a «hiatus in warming.»

How about if the increase in CO2 concentration in the atmosphere is due to the release of CO2 from the sea as a result of global warming that started 160 years ago?

Global warming could increase the number of hungry in the world in 2080 by anywhere between 140 million and 1 billion, depending on how much greenhouse gas is emitted into the air over the next few decades.