Sentences with phrase «vapor as a greenhouse gas»

The Science of Doom article conflates a bunch of issues and is particularly unhelpful for understanding the nature of CO2 and water vapor as greenhouse gases per se.

Most troubling initially was the effective omission of water vapor as a greenhouse gas (Figure 1).

There are some aspects of the role of water vapor as a greenhouse gas that are not well understood, again mainly because we lack the necessary observations to test theoretical models.

Not exact matches

Walter sees the benefits of using methane as an energy source as twofold: «Not only does it prevent a potent greenhouse gas from entering the atmosphere by converting it to weaker greenhouse gases — water vapor and carbon dioxide — but using it on - site would also reduce the demand for other fossil - fuel sources.»

The so - called greenhouse gases — mainly water vapor and carbon dioxide — make the planet warm and habitable by trapping solar heat as it radiates back off the Earth.

This effect makes the atmosphere act somewhat like a blanket that becomes thicker when amounts of water vapor, carbon dioxide and other greenhouse gases, such as methane and nitrous oxide, increase.

While the ECS factors in such «fast» feedback effects as changes in water vapor — water itself is a greenhouse gas, and saturates warm air better than cold — they argued that slow feedbacks, such as changes in ice sheets and vegetation, should also be considered.

To heat that boiler, the damp, crumbly brown coal known as lignite — which is even more polluting than the harder black anthracite variety — burns in the presence of pure oxygen, a process known as oxyfuel, releasing as waste both water vapor and that more notorious greenhouse gas, carbon dioxide (CO2).

We call this the Charney climate sensitivity, because it is essentially the case considered by Charney (1979), in which water vapor, clouds and sea ice were allowed to change in response to climate change, but GHG (greenhouse gas) amounts, ice sheet area, sea level and vegetation distributions were taken as specified boundary conditions.

I may have become «Old School,» but back in the 70's water vapor was described (canonically) as a «Greenhouse Gas.»

Release of massive amounts of water vapor that then somehow does not behave as a greenhouse gas.

Obviously, sensitivity to radiative forcing of greenhouse gases (not water vapor, but CO2 and CH4) can't include feedbacks of those same gases — those are defined as forcings in such a sensitivity.

1) Scientists have long known that greenhouse gases in the atmosphere — such as carbon dioxide, methane, or water vapor — absorb certain frequencies of infrared radiation and scatter them back toward the Earth.

As warmer air can hold more water vapor, which is also a greenhouse gas, this will amplify the effect.

This acts as a positive feedback on the surface warming, because water vapor itself is a powerful greenhouse gas that, like CO2, absorbs and re-emits longwave radiation back to the surface.

You appear to have your knickers all twisted about the generally accepted greenhouse theory, which states that GH gases (primarily water vapor, plus some smaller ones, such as CO2) keep our planet warmer than it would otherwise be if they were not in our atmosphere.

One driver of temperatures in this region is the abundance and variability of ozone, but water vapor, volcanic aerosols, and dynamical changes such as the Quasi - Biennial Oscillation (QBO) are also significant; anthropogenic increases in other greenhouse gases such as carbon dioxide play a lesser but significant role in the lower stratosphere.

So basically earth would somewhat similar to Earth without a greenhouse effect, and strange as it may seem, it would a world without greenhouse effect as the would be a shortage of the most dominant greenhouse gas the earth has: water vapor.

The heat caused by infrared radiation is absorbed by greenhouse gases such as water vapor, carbon dioxide, ozone and methane, which slows its escape from the atmosphere.

These so - called greenhouse gases include carbon dioxide and water vapor, as well as ozone and methane among others.

But instead water vapor, CO2 and other «greenhouse» gases just affect the «passage of radiation» as it travels through the atmosphere.

It is often mentioned as a somewhat routine talking point that «water vapor is the most important greenhouse gas.»

A substantial reduction in water vapor (shown below, from Lacis et al (2010) as well as increase in the surface albedo are important feedbacks here, showing that removing the non-condensing greenhouse gases (mostly CO2) in the atmosphere can collapse nearly the entire terrestrial greenhouse effect.

BUT, the question remains:» why CO2 & water vapor are referred to, as Greenhouse gases?

Its warming effect, however, is simultaneously amplified and dampened by positive and negative feedbacks such as increased water vapor (the most powerful greenhouse gas), reduced albedo, which is a measure of Earth's reflectivity, changes in cloud characteristics, and CO2 exchanges with the ocean and terrestrial ecosystems.

As I understand it the water vapor is the most forceful greenhouse gas.

Then more water evaporates (as an avid student of 50 + years of scientific literature, you must know that the water vapor is the worst greenhouse gas of all), thus potentially exacerbating the warming.

Besides carbon dioxide, greenhouse gases include water vapor, methane (natural gas), nitrous oxide (from fertilizer use), and chlorine - and fluorine - containing gases used in air conditioning units and as solvents.

For years it was widely believed among scientists that water vapor so outshone other potential greenhouse gases as to render their warming contributions moot.

Water vapor is more difficult to measure than the other greenhouse gases and scientists are uncertain as to the exact part that it plays in global warming.

To name two examples, both John Tyndall — who first discovered the roles of water vapor and carbon dioxide as greenhouse gases in 1859 - 60 — and Svante Arrhenius — who hand - calculated the first model of greenhouse warming in 1896 — used this terminology in the titles of their ground - breaking papers.

A third issue I have with the ICCP is the fact they do not list water vapor as being a greenhouse gas on their list of such gases (see their web site).

It make the AGW theory * stronger * or the climate guys are underestimating the effect of CO2 and water vapor [as greenhouse gases].

GREENHOUSE EFFECT Greenhouse gases in the atmosphere (such as water vapor and carbon dioxide) absorb most of the Earth's emitted longwave infrared radiation, which heats the lower aGREENHOUSE EFFECT Greenhouse gases in the atmosphere (such as water vapor and carbon dioxide) absorb most of the Earth's emitted longwave infrared radiation, which heats the lower aGreenhouse gases in the atmosphere (such as water vapor and carbon dioxide) absorb most of the Earth's emitted longwave infrared radiation, which heats the lower atmosphere.

As such, water vapor should be called a «swamp cooler» gas and not a «greenhouse» gas.

The physics is very clear that CO2 is the principal greenhouse forcing gas, and that atmospheric water vapor acts as a feedback magnifier that enhances the terrestrial greenhouse effect.

I guess my question now is why CO2 trumps water vapor as the prime greenhouse gas even though there is so much more water vapor in the atmosphere relative to CO2 and other greenhouse gases.

Indeed, strong observational evidence and results from modeling studies indicate that, at least over the last 50 years, human activities are a major contributor to climate change.Direct human impact is through changes in the concentration of certain trace gases such as carbon dioxide, chlorofluorocarbons, methane, nitrous oxide, ozone, and water vapor, known collectively as greenhouse gases.

As the concentration of gaseous water (water «vapor») in the atmosphere is on the order of 3o, 000 to 40,000 ppm, this trace greenhouse gas really * is * the invisible 800 lb gorilla in the room even if we ignore the phase change effects.

Elevating CO2 above water vapor as the most important greenhouse gas in our atmosphere, takes a very myopic view of the physics of the atmosphere and the physics of the solar system.

A. Lacis writes «The physics is very clear that CO2 is the principal greenhouse forcing gas, and that atmospheric water vapor acts as a feedback magnifier that enhances the terrestrial greenhouse effect.

As to my sources, maybe you should read some, I almost always quote from actual peer reviewed science (obviously foreign to you since you think sizes of numbers is science), like this one that says that long lived greenhouse gases are the control knob and that water vapor (with its lifetime of a couple of weeks) just reacts to changes.

Instead, the aim of our Science paper was to illustrate as clearly and as simply as possible the basic operating principles of the terrestrial greenhouse effect in terms of the sustaining radiative forcing that is provided by the non-condensing greenhouse gases, which is further augmented by the feedback response of water vapor and clouds.

As a neighbor Oregonian, I'm all for more trees but it would seem contrary to the arguments other environmental websites speak about lowering albedo and that water vapor is, in itself, a greenhouse gas.

Also, while we have good atmospheric measurements of other key greenhouse gases such as carbon dioxide and methane, we have poor measurements of global water vapor, so it is not certain by how much atmospheric concentrations have risen in recent decades or centuries, though satellite measurements, combined with balloon data and some in - situ ground measurements indicate generally positive trends in global water vapor.»

Greenhouse gases, such as carbon dioxide (CO2), methane (CH4), water vapor, and fluorinated gases, act like a greenhouse around Greenhouse gases, such as carbon dioxide (CO2), methane (CH4), water vapor, and fluorinated gases, act like a greenhouse around greenhouse around the earth.

A «Green House Gas Effect» refers to a reduction in the outgoing longwave radiation (OLR) resulting from an increase in a greenhouse gas, such as water vapor, at a given surface temperatuGas Effect» refers to a reduction in the outgoing longwave radiation (OLR) resulting from an increase in a greenhouse gas, such as water vapor, at a given surface temperatugas, such as water vapor, at a given surface temperature.

We know by lab measurements that CO2 and water vapor are greenhouse gases (as are methane, nitrogen oxides etc).

3 Further complicating the response of the different atmospheric levels to increases in greenhouse gases are other processes such as those associated with changes in the concentration and distribution of atmospheric water vapor and clouds.

The Equilibrium Climate Sensitivity (ECS) The Economist refers to is how much Earth temperatures are expected to rise when one includes fast feedbacks such as atmospheric water vapor increase and the initial greenhouse gas forcing provided by CO2.