Sentences with phrase «do with water vapour»

Possibly the most obvious place to look for man's impact on pumping «greenhouse» gases into the atmosphere has nothing whatsoever to do with carbon dioxide, but it has to do with water vapour.

Sea levels rise and fall partly as a result of thermal expansion and contraction, and partly to do with water vapour, the water cycle, cloud levels and weather conditions in general.

Not exact matches

I've been discussing climate change with lots of people at campaign stalls recently, and it has opened my eyes as to how far this «balanced» climate sceptic reporting is shaping the thinking of even those people who are concerned and want to see some action («I am aware that flying might make climate change worse, but I'll still do it because the warming may just be part of a natural cycle — I would stop if I was more certain»; «I am worried, but I have also heard that it is just water vapour which makes us warmer, so we just don't kow if this CO2 thing is true, everybody seems to have a different agenda» etc.).

Areas with high water vapour content at the exact same latitude don't cool off nearly as much which is evidence of the very back radiation you are trying to refute.

The IPCC most certainly also claims water vapour warms, doing most of «33 degrees» of warming, whereas, in fact, it cools the surface by reducing the temperature gradient whilst still keeping radiative balance with the Sun.

I'm puzzled why it is that people don't get excited by the apparent probability that the evaporative cooling / latent heat transfer should provide a major negative feedback with any T increase / increased water vapour.

You can get any invalid «sensitivity» you wish if you start with invalid assumptions that the atmosphere would have been isothermal without WV and GHG Without WV the surface would have been around 300K, but water vapour reduced the gradient (as does carbon dioxide to a minuscule extent because it radiates in far fewer frequencies than WV) and so each has a cooling effect.

Radiative gases cool our atmosphere at all concentrations above 0.0 ppm, with water vapour doing the bulk of the work.

Existing climate models with a positive feedback from H2O are plain wrong, since they don't allow the heated water vapour to rise, forming clouds that contribute to global dimming, offsetting CO2 effects on temperature.

With 2), there's still something I don't get... and this applies just as much to your answer as to any answers you would get from climate science, since clouds are clouds (i.e droplets of water), and water vapour is a gas, so their back - radiation explanation doesn't even apply in the case of clouds (not saying it physically could apply anywhere but hopefully you get what I mean)... what I don't get is, you liken them to a blanket, but a blanket is next to you, clouds are separated from the surface by quite a bit of atmosphere — so why is it warmer the next morning at the surface when the clouds are there?

However, in areas of high pressure, with the air subsides, water vapour does not rise and no rain or clouds will form.

You can show that it does by illustrating water vapour as being very «thick» at the bottom of the graph and very «thin» at the top because water vapour declines with temperature which declines with altitude.

The resulting warming due to the water vapour is in fact larger than the initial warming due to the CO2 that forced it to happen, and this is the point of the Lacis paper - yes, water vapour is a more important greenhouse gas than CO2, but water vapour doesn't change systematically with time UNLESS CO2 is changing and initiating a warming that sets into motion the surface and atmospheric processes that allow water vapour to systematically increase.

-- Water Vapour (WV) does not mix evenly in with the other gases and atmospheric WV content varies from location to location but I believe it is estimated to be around 4 to 5 %.

«What has the efficiency of latent heat transport by water vapour got to do with calculating the total potential energy or the total kinetic energy in the atmosphere?»