Sentences with phrase «further warming of our atmosphere»

Not exact matches

This change leads to a higher percentage of emitted carbon dioxide remaining in the atmosphere, which then further accelerates global warming.

But for planetary scientists, Jupiter's most distinctive mystery may be what's called the «energy crisis» of its upper atmosphere: how do temperatures average about as warm as Earth's even though the enormous planet is more than fives times further away from the sun?

If trees die because of those droughts, the carbon they store will be released into the atmosphere, where it will further exacerbate global warming.

Their results suggest a drop of as much as 10 degrees for fresh water during the warm season and 6 degrees for the atmosphere in the North Atlantic, giving further evidence that the concentration of atmospheric carbon dioxide and Earth's surface temperature are inextricably linked.

If carbon dioxide in the atmosphere doubled from its pre-industrial level, the graph suggested, global warming would rise far above the widely accepted prediction of between 1.5 and 4.5 °C.

But the models also suggest that the scheme could go too far: Adding excess sulfur could increase ice in Antarctica, «overcompensating» for warming, says Rasch, which could affect ecosystems and the global ocean - atmosphere system in a myriad of ways that scientists haven't studied.

A northwards branch of the gulf stream, the North Atlantic Drift, is part of the thermohaline circulation (THC), transporting warmth further north to the North Atlantic, where its effect in warming the atmosphere contributes to warming Europe.

That's because methane (or CH4) has more than 30 times the global warming impact of carbon dioxide (CO2) over 100 years (and its more than 80 times more powerful over 20 years, since methane disappears from the atmosphere far more quickly than CO2).

One of the methods championed by climate scientists is represented in the fraction of attributable risk [FAR (Allen, 2003; Stone and Allen 2005)-RSB-, which assesses the attribution of climate anomalies to anthropogenic warming of the atmosphere.

Another process knows as a «runaway greenhouse» occurs due to the increased greenhouse effect of water vapor in the lower atmosphere, which further drives evaporation and more warming.

Research so far suggest that because of a warming, moistening atmosphere, CAPE will like increase as temperatures continue to rise.

The accumulation of organic carbon in the deep ocean would limit the release of carbon into the atmosphere as CO2, limiting further warming by this greenhouse gas.

As humans release ever - larger amounts of carbon dioxide into the atmosphere, besides warming the planet, the gas is also turning the world's oceans more acidic — at rates thought to far exceed those seen during past major extinctions of life.

Thus far, Kepler has found 48 planetary candidates in their host star's habitable zone (of which 10 are near Earth - size), but this number is a decrease from the 54 reported in February 2011 only because the Kepler team is now applying a stricter definition of what constitutes a habitable zone around stars to account for the warming effect of planetary atmospheres, which would move such a zone away from the star, outwards in orbital distance resulting in longer orbital periods (NASA news release; and Kepler Press Conference slides — in pdf).

Adding further greenhouse gases to the atmosphere warms the ocean cool skin layer, which in turn reduces the amount of heat flowing out of the ocean.

Absorption of thermal radiation cools the thermal spectra of the earth as seen from space, radiation emitted by de-excitation is what results in the further warming of the surface, and the surface continues to warm until the rate at which energy is radiated from the earth's climate system (given the increased opacity of the atmosphere to longwave radiation) is equal to the rate at which energy enters it.

This, of course, would add GHG to the atmosphere, feeding into further warming.

The drought - induced decline of carbon - dense tropical forests and their replacement by lower - carbon savannas would release enormous amounts of CO2 to the atmosphere, amplifying global warming far beyond the effects of just the CO2 released by burning fossil fuels.

When Mckibben mentioined: «We might even have to consider currently far - fetched schemes to pull CO2 out of the atmosphere», I can only hope the next administration won't listen to people like «Wired» magazine that had a recent article on how ancient forests are contributing to global warming.

--- ignorance about atmospheric chemistry really shows here...... snip --- «Moreover, the CO2 that is supposedly causing «catastrophic» warming represents only 0.00035 of all the gases in the atmosphere (1.25 inches out of a 100 - yard football field), and proposals to control this vital plant nutrient ignore a far more critical greenhouse gas: water vapor.»

This is a peer reviewed paper by respected scientists who are saying that aerosol forcing means that the majority of the warming caused by existing co2 emission has effectively been masked thus far, and that as aerosols remain in the atmosphere for far shorter a duration of time than co2, we will have already most likely crossed the 2 degree threshold that the G8 politicians have been discussing this week once the cooling effect of aerosols dissipate.

As I discussed in # 333, requiring a warmer lower part of the atmosphere, on warming further and emitting more IR, to cause a cooler part receiving the excess IR to cool further, violates radiative transfer principles and / or the Second Law.

This would actually not be true at sufficiently high latitudes in the winter hemisphere, except that some circulation in the upper atmosphere is driven by kinetic energy generated within the troposphere (small amount of energy involved) which, so far as I know, doesn't result in much of a global time average non-radiative energy flux above the tropopause, but it does have important regional effects, and the result is that the top of the stratosphere is warmer than the tropopause at all latitudes in all seasons so far as I know.

The condition that portions of the upper atmosphere are significantly warmer than otherwise via direct solar heating should (so far as I know) enhance the GHG - induced cooling at those levels.

A few days ago the «shocking» headlines came out, describing some new research on how much methane is now seeping out of the Arctic seafloor — a greenhouse gas far more potent than carbon dioxide, but much shorter lived in the atmosphere — as the region warms and permafrost melts.

The net result is further warming of the surface, which in turn induces additional heating of the atmosphere column above.

Computer simulations of the atmosphere and ocean, when run with rising greenhouse gases, show the warm pool heating at the same rate as other ocean regions, in contrast to what has been observed there so far, the researchers said.

The warming is not homogeneous, and further proof that it is not the atmosphere warming the ocean directly, but GH gas concentrations altering the flow of energy out of the ocean.

This is because over the past three years, hundreds of new scientific field accounts of global warming's impacts, as well as improved peer - reviewed analyses of global warming itself in both the deep past and the very near future, have depicted earth's atmosphere as far more «sensitive» to the invisible CO2, methane and other human - sourced greenhouse gases than had been hoped.

The history of climate change goes back much further: in the 19th century, physicists theorised about the role of greenhouse gases, chiefly carbon dioxide, in the atmosphere, and several suggested that the warming effect would increase alongside the levels of these gases in the atmosphere.

Interesting, not far off the the amount of energy released in condensing water out of the atmosphere, but more by about a factor of 5 (it doesn't seem as though condensing water in the atmosphere can explain all the observed warming).

It further states that the atmosphere and oceans have warmed, the amounts of snow and ice have diminished, sea level has risen, and GHG concentrations have increased.

The economic constraint on environmental action can easily be seen by looking at what is widely regarded as the most far - reaching establishment attempt to date to deal with The Economics of Climate Change in the form of a massive study issued in 2007 under that title, commissioned by the UK Treasury Office.7 Subtitled the Stern Review after the report's principal author Nicholas Stern, a former chief economist of the World Bank, it is widely viewed as the most important, and most progressive mainstream treatment of the economics of global warming.8 The Stern Review focuses on the target level of carbon dioxide equivalent (CO2e) concentration in the atmosphere necessary to stabilize global average temperature at no more than 3 °C (5.4 °F) over pre-industrial levels.

«Further recognizing the fact that «[h] uman activity has and will continue to alter the atmosphere of the planet» and that «[s] uch activity may lead to demonstrable changes in climate, including a warming of the planetary mean temperature,» ALEC developed the Interstate Research Commission on Climactic Change Act in the mid-1990s.

While the Earth seems to be managing the steady increase in atmospheric carbon dioxide relatively well so far (although the effects of this increase may not be felt for many decades to come), there are concerns that passing the 400 parts per million atmospheric carbon dioxide threshold will bring the Earth's atmosphere closer to a tipping point at which global warming accelerates rapidly with dire consequences for mankind and other creatures on Earth.

Melting of this ice may release large quantities of methane, a powerful greenhouse gas into the atmosphere, causing further warming in a strong positive feedback cycle and; marine genus and species to become extinct.

Hence CO2 ramped up ever faster in the atmosphere, further accelerating warming, until you have the same symptoms of a global - warming - mass - extinction like the end Triassic or even Permian (ocean acidification, jump in global temperatures, ocean anoxia, etc).

It being further agreed that AGW works by warming CO2 and hence the atmosphere, resulting in a slowing of the cooling of the oceans into the atmosphere, we are thus back to point (2) above --

It has been recorded since the 1960s in terms of both rising ocean temperature and rising acidity, both of which reduce the capacity to remove CO2 from the atmosphere, thereby advancing AGW and further ocean warming.

Also note that human induced warming probably will trigger natural C02 / methane emissions leading to further warming so anthropogenic source will probably play a decreasing role in the amount of C02 in the atmosphere as the planet moves to a new equilibrium point.

That's the dark future we inch closer to with every 0.1 C degree of further warming, with each additional megaton of fossil fuel and industrial carbon hitting the atmosphere.

Researchers said that a doubling of carbon dioxide in the Earth's atmosphere compared with pre-industrial times could result in a global temperature increase of up to 5.3 C — far warmer than the 4.6 C older models predict.

Elimination of this assumption further undermines the claim that the warming in the industrial era period was due to human addition of CO2 to the atmosphere.

They found that, as humans burn ever more fossil fuels to release ever higher levels of greenhouse gases into the atmosphere, to stoke yet further global warming and trigger catastrophic climate change, all 571 cities will experience ever greater heatwaves: that is, three consecutive days and nights at which temperatures are about as high as they have ever been for that city.

And further, in the Earth's real greenhouse atmosphere, the windows can be opened as in a real greenhouse, that is, a real greenhouse has both heating and cooling capabilities — AGWSF the Greenhouse Effect greenhouse has taking out the cooling, created a fictional concept of a greenhouse as only warming.

This suggests a potential positive feedback loop wherein a warming climate supports larger algal populations, larger algal populations provide more organic matter to support more methane production, and a portion of the methane produced escapes to the atmosphere, where it functions to further warm climate.

Two years ago, an authoritative study predicted there could be as little as 10 years before this «tipping point» for global warming was reached, adding a rise of 0.8 degrees had already been reached with further rises already locked in because of the time lag in the way carbon dioxide the principal greenhouse gas is absorbed into the atmosphere.

If there is no contribution of cool SST's to that area, then the warm tongue will move farther east and change the vertical structure of the atmosphere creating a greater liklihood of El Nino.

The pattern of temperature change through the layers of the atmosphere, with warming near the surface and cooling higher up in the stratosphere, further confirms that it is the buildup of heat - trapping gases (also known as «greenhouse gases») that has caused most of the Earth's warming over the past half century.

The theory is that increasing CO2 will cause a small bit of warming and this will increase evaporation rates (which occur fastest in the tropics) and dumps more water vapour in the atmosphere (water vapour is by far a more potent greenhouse gas than CO2) and this feedback amplification is meant to continue until Earth settles down and finds a new equilibrium temperature.