The whole issue is extremely complicated. The problem is that politicians want to solve a problem we're not completely sure exists, so they pay scientists and public servants to make the public accept it so that they can get onto fixing the "problem". The train of thought is that "fixing" it could only help the economy, whereas not doing anything would be catastrophic if it turns out that it is in fact real. From what I've studied on the topic, most scientists follow the "heck if i know" approach, and simply try to not only please the people funding them, but also do some research as well.
Quick Facts:
- some glaciers are melting, others are getting bigger, a growing glacier could also be mere miles away from a melting one.
- melting glaciers don't neccessarily turn to water, they can also simply evaporate, sort of like dry ice. (http://en.wikipedia.org/wiki/Sublimation_(phase_transition)#Water)
- temperature fluctuations have very little impact on the melting glaciers issue, the reason is because if the temperature changes a few celsious, it's most likely still well below the freezing threshold. The cause of receding glaciers can almost always be blamed on local factors like weather, humidity,what the surrounding area is like (cities,lakes,rivers,forests), and also the amount of radiation the sun gives off
- as far as the whole greenhouse effect, its not a simple equation if more CO2=more heat. The more CO2 packed into the atmosphere, the less each molecule of CO2 affects the atmosphere, because the molecules are competing with each other. The effect is understood as a logarithmic equation rather than a linear one.
- atmospheric CO2 does not equal the amount of CO2 we emit. Contrary to popular belief, while we continue to emit more and more carbon dioxide, the amount of CO2 in the atmosphere doesn't always increase, the levels fluctuate and are fairly stable. The reason is because more CO2 = more carbon sink holes. Plants like CO2, so more CO2 equals faster growing plants, which equals less CO2 because plants eat CO2.
- climate models are always innacurate, because we don't properly understand how climate functions at this point in time.
- Al Gore lies, or presents innacurate information, usually intentionally. He's pretty much full of crap. http://news.bbc.co.uk/2/hi/7037671.stm
Peter Dorn @ U Ill Chicago did a survey of 1300 scientists.
Two questions were key: have mean global temperatures risen compared to pre-1800s levels, and has human activity been a significant factor in changing mean global temperatures.
About 90 percent of the scientists agreed with the first question and 82 percent the second.
So, from this study, it seems the answer is closer to 82%. I see all sorts of surveys and all sorts of spurious information.
Maybe global warming isn't man-made, it's just a natural occurrence of a cycle the Earth goes through. Global warming-global cooling-warming-cooling-warming-so on and so forth.
But what if it IS our fault? What if we can do something about it? Shouldn't we try to do what we can just for the sake of a better tomorrow? I won't take the chance that it's "normal" for the Earth to, much faster than normal, suddenly melt polar ice and generate holes in our ozone so I'm doing the smart thing and giving Gore the benefit of the doubt.
I believe Global Warming is real and it's foolish to shrug it off.
They mean that 99% of the 2400 scientist picked by Al Gore agree with man made global warming. BUT the other 37,000.00 say it's a farce. I think the Al Gore church of the man made glottal warming is even more violent than the Obama -bots. They sit in their parents basement just WAITING for someone to disagree with them . Then they ALL pounce and remove any thing they disagree with. Very narrow minded ( which should tell you something about their theories ) people