Why is the climate changing. (Page 68)

zeffur: Saturated as in condensed to the point that it cannot hold any more moisture for the conditions in which it exists. That's what I imagine he meant.

zeffur: re: "thehating:
Where are these "low pressure" and "high pressure" areas on earth? "

Sometimes my sinuses feel like a high pressure space. lol

Cold air is more dense because the molecules are closer together than warm moist air.

Sir Loin: Equator = low press due to it being kind of hot so air rises
30S and 30N high pressure with descending air and clear skies, this is where all the major deserts have formed.
45 S & N = low press, stormy areas
Poles = high press

Sir Loin: Stay on ya feet more, might help sinuses

zeffur: My sinus condition isn't from being off my feet.

Sir Loin: awww Zeff that's probably because it's caused by high pressure and makes you heavier

zeffur: Nah.. it's some kind of infection...but, it is gradually going away--slowly but surely.

theHating: What are the molecules doing?

theHating: What happens to cold dense air when you heat it up?

Sir Loin: Is this some kind of a test? As air rises, pressure drops and molecules become further apart so get cooler due to not bumping into each other so much. This is called adiabatic cooling

Sir Loin: How do you heat the cold dense air?

theHating: According to people with eyes and loud mouths: the sun.

theHating: So air at the poles is constantly becoming less dense but higher pressure?

Sir Loin: OK, so it's likely to be near the equator and will begin to rise

Sir Loin: Why would polar air become less dense? Maybe if temp was increasing there I guess

theHating:

Sir Loin: Yes, he's describing a fohn wind, there's a ^ over the o so pronounced fern.
We have similar winds where I live.

Sir Loin: See? Atmospheric physics is really very very simple

theHating: So if the sun heats up a bit of Antarctica, what does it do to the local air pressure?

zeffur: It depends on where you take your sample. Heat warms air molecules--which excites them & causes them to move further apart. Heat at sea level will cause that warm air to rise & be replaced by colder air until it has cooled sufficiently to reach equilibrium in the atmosphere at some level, I'd imagine.

Sir Loin: well during summer it does heat Antarctica. so locally the air will rise. It will also create some horizontal temperature gradient and generate some polar weather

theHating: So the guy in my video was correct?

Sir Loin: It can also generate more ozone as UVB splits O2 molecules into 2 O radicals which will bond with O2 to create O3

zeffur: But as the air rises, it dissipates the heat & reaches equilibrium at some altitude.

Sir Loin: Dunno I went to sleep while watching it