06-14-2007, 05:06 PM | #41 |
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I remember seeing a BBC program on global cooling but the term itself is misleading. The theory was that it does happen to a degree but is more than negated by global warming. It comes from the discovery of global dimming, the theory that states the clouds of pollutants, and in particular airplane discharged gases, have the effect of reflecting an increased percentage of the Sun's rays back out into space. Supposedly the World is a small percentage darker because of this, and slightly cooler than it would be without it. After the World Trade Centre was destroyed, and all flights were grounded for a day or two, a marked increase in average temperature across the United States was recorded.
The wikipedia article on global dimming is quite an interesting read. http://en.wikipedia.org/wiki/Global_dimming Apparently the trend is reversing again now though and the world is getting a bit brighter. The time when the world began to get brighter corrolates directly with when most developed nations passed laws to reduce aerosol emissions. The trend is particularly marked above Europe, where the firmest action was taken. So aerosols had a significant impact on the climate which adds credibility to the notion that human caused emissions of CO2 also do. |
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06-14-2007, 05:09 PM | #42 |
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Yes, Innoc, I understand the press went crazy over the idea of global cooling during the 70s. Climate scientists, however, discussing the issue knew full well the ice age predictions based on the cooling trends during the 70s and two decades past were not scientifically sound, e.g. [1]. Very few scientists actually ever predicted global cooling. In fact, there were scientists during the 70s actually discussing the possibility of a global warming as a result of human activity. We can safely say there was a scare in the press about global cooling, sure. Like I said though, examine the scientific literature, not the news stories, will give us a better understanding of what the scientific knowledge was at the time.
I also understand the debate of global warming has entered the political arena, which may very well be an unfortunate thing. I'm aware the policies of action or inaction are those of a political nature, but the science has to be seen in an objective way not obstructed by politics. The integrity of the science behind global warming is based on the scientific method, and no other. Edit: To reply to halo, the 70s scare of a "global cooling" was based on a actual cooling trend. Aerosols were large cause of this cooling. Global dimming is also based on aerosols, which act as reflectors, bouncing the Sun's rays back into space. It's been suggested that global dimming may very well be keeping Earth from getting as warm as it could be. Overall though, I believe the impact of aerosol forcings (i.e. global dimming) is small, but not negligible.
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OCCUPATION 101. One would think a simple task would be, well, simple. Maybe not for simpletons. Last edited by uBeR; 06-14-2007 at 05:16 PM. |
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06-14-2007, 05:34 PM | #43 |
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Isn't that what I just typed and what the link I posted says, except the link has much more detail?
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06-14-2007, 05:45 PM | #44 | ||||||
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06-14-2007, 05:47 PM | #45 | |
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Thanks, Scuzzy
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06-14-2007, 06:02 PM | #46 |
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Request denied. But thanks for being patronising. It was really nice.
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06-14-2007, 06:41 PM | #47 | ||||
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06-14-2007, 07:01 PM | #48 | |
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Scuzzy
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06-14-2007, 07:07 PM | #49 |
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Well not specifically. It's more a case of 'I'll do what I want and not take orders from a condescending idiot.'
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06-14-2007, 07:11 PM | #50 | |||||
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QUOTE=Etzell]You paint the picture of me sitting there calling all Christians hypocrites, which seems like a personal attack to me.[/quote] I didn't say all Christians, I said "a Christian", as in myself. Quote:
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06-14-2007, 07:17 PM | #51 | |
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Holy shiat scuzzy, if we put a cap on emissions and plant more trees, the.. uh... air might be clearer! oh no! there would be more forests and parks! Shit, were all gonna die!! We've put plenty of 'harsher' regulation on business and there haven't been dramatic impacts you claim will come. (Hitler? Nuclear war? lol...) I'll tell you what a BAD idea is: Lets wait till we have to put incredibly strict restrictions on business because we've waited too long because of people like you. THEN we'll see economic collapse. Reasonable regulation now is a much better economic idea than strict regulation later. Even the fundamentalist christian nutjobs I know believe in taking action to prevent/reduce global warming. Every single mentally stable human I know believes in acting to reduce/avoid global warming. Why do you oppose it? |
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06-14-2007, 07:25 PM | #52 |
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Doesnt matter anyways. Were doomed.
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06-14-2007, 07:29 PM | #53 |
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Aside: Why is conservatism seemingly bundled with avid skepticism of global warming?
Anyway, this thread is a pretty terrible representation of people not reading others' posts. Global dimming was discussed by me in post #3. Etzell reiterated my point about the box (1,1) and box (2,2) association 2 posts later. Scuzzy seems to ignore all the posts about global dimming. Seriously, if you are going to reply to one post, reply with the context of all the rest. |
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06-14-2007, 07:55 PM | #54 |
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I think a few other people have said this before but... Why is acting as though humans affect warming, whether or not we know, a bad thing? We have other things to gain, we wouldn't just be taking wild swings hoping to accomplish one single goal. Their are other problems that could be fixed by trying to negate the possible human factor in warming, one of them being air pollution, or for that matter ground and water as well.
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06-14-2007, 07:55 PM | #55 | ||||
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06-14-2007, 08:08 PM | #56 |
Didn't someone post a link a few months back talking about how the media has talking about global warming and new ice ages in cycles for the past like 200 years? Like every 30-50 years evidence pops up and they start talking about how everything is either going to freeze or melt?
I live in Florida and summer is hot and winter is not as hot. Been like that all my life. |
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06-14-2007, 08:21 PM | #57 | |
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All I have stated is that no one has proven that man has had any siginificant impact to the global warming that is occuring. No one can measure what warming is natural, therefore what contribution man may or may not have had made is not measurable. Scuzzy
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06-14-2007, 08:27 PM | #58 | |
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06-14-2007, 08:39 PM | #59 | |
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06-14-2007, 08:49 PM | #60 |
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I don't think that is a very good example seeing as what I was trying to say was - if we try to stop global warming, human or not, we are also guaranteed to be reducing pollution, something which only a select few would say is pointless. Comparing it to people saying the government shouldn't spend money on the church doesn't address the point of what I was saying.
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