It's most likely not global warming.. from what I understand in Geography, global warming doesn't even exist; progressive changes are referred to as climate change, and that includes areas which become colder. Anyway, maybe you were kidding, so moving on.. after looking at a map showing pressure areas today in Geography and just mentioning to Becca that the Northwest was an area of low pressure I'm disappointed to see that it's hot where you are, heh.
And now to continue my tragic French short story..
uh...not to get all rabid or anything...but that's not true. Cycles of climate change happen, and recent thinking is that weather changes occur suddenly, but "sudden" geologically--weather changes as dramatic as the last hundred years, and the last twenty in particular, are way out of the ordinary. Your geography teacher needs to be whacked across the head with something large and heavy for buying into the propaganda.
Oh I didn't mean to imply that climate change does not happen; I must have worded it wrong. As for sudden changes recently, I'm not educated enough to contest whether or not they're all faults of humans. I doubt that my teacher is trying to sell us propaganda; I'm just not a good conduit of what he's taught us and what was in the video on climate change in the first lab and so on.
There are such things as climate changes, but a progressively higher average temperature in many places all over the world, coupled with a shrinking ozone layer does equal global warming. Anybody who says different is probably a lackey of the Bush administration.
You know, for a geographer, that was an incredibly dumb thing to say. No offense to him/her.
Yeah but what about progressively colder temperatures in places as well? http://www.umac.org/climate/climate.html Scroll to 'regional temperature patterns.' And as it says here (http://antwrp.gsfc.nasa.gov/apod/ap031006.html), CFC recalls seem to be making a difference (though one can still apparently get products with the chemical on the black market in countries that agreed to the Montreal Protocol)
And I said that I understood that it didn't exist, not that my teacher directly said that it doesn't.. I don't have a strong enough memory to say exactly what he did.
actually, the phenomenon of "global warming" can cause sudden drops in temperature. Many scientists think that humans may prematurely bring about an ice age. It's like...I have only a vague grasp on the mechanics, so I can't explain it too well, but:
The basic idea of global warming is that people are releasing too much CO2 into the atmosphere(through burning fossil fuels, which contained previously-bound CO2). So this has an initial heating effect--I do not understand exactly why, but I did at one time!--but that effect will shut down one of the major ocean currents.
The ocean currents play a HUGE role in regulating the earth's atmosphere, and the one that's in imminent danger of being shut down--somewhere in the North Sea, I believe--would freeze up Europe, and the more polar ice is on the earth, the colder the earth gets (b/c more and more heat is reflected rather than absorbed) and the more polar ice forms and...around and around.
Yes I've heard about the huge danger of a gyre (that's what you're referring to I think) freezing up, which made me wonder just how easy it is to bring on an ice age.. I know if a lot of volcanoes erupted at once, that would..
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Date: 2003-10-21 11:37 am (UTC)no subject
Date: 2003-10-21 01:56 pm (UTC)no subject
Date: 2003-10-21 02:57 pm (UTC)And now to continue my tragic French short story..
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Date: 2003-10-21 03:52 pm (UTC)no subject
Date: 2003-10-21 04:27 pm (UTC)no subject
Date: 2003-10-21 04:27 pm (UTC)You know, for a geographer, that was an incredibly dumb thing to say. No offense to him/her.
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Date: 2003-10-21 04:36 pm (UTC)And I said that I understood that it didn't exist, not that my teacher directly said that it doesn't.. I don't have a strong enough memory to say exactly what he did.
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Date: 2003-10-21 05:35 pm (UTC)The basic idea of global warming is that people are releasing too much CO2 into the atmosphere(through burning fossil fuels, which contained previously-bound CO2). So this has an initial heating effect--I do not understand exactly why, but I did at one time!--but that effect will shut down one of the major ocean currents.
The ocean currents play a HUGE role in regulating the earth's atmosphere, and the one that's in imminent danger of being shut down--somewhere in the North Sea, I believe--would freeze up Europe, and the more polar ice is on the earth, the colder the earth gets (b/c more and more heat is reflected rather than absorbed) and the more polar ice forms and...around and around.
did that make any sense at all?
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Date: 2003-10-21 06:35 pm (UTC)no subject
Date: 2003-10-21 10:32 pm (UTC)here (http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2003/04/06/nclim06.xml)
Doesn't get much more exciting that discussions over climate change, eh?
no subject
Date: 2003-10-21 03:27 pm (UTC)