it already is happening
this is from almost 3 years ago, SF Chronicle:
Scientists reported Friday they have detected the clearest evidence yet that global warming is real -- and that human industrial activity is largely responsible for it.
Researchers at the annual meeting of the American Association for the Advancement of Science cited a range of evidence that the Earth's temperatures are rising:
-- The Arctic regions are losing ice cover.
-- The populations of whales and walrus that Alaskan Eskimo communities depend on for food are crashing.
-- Fresh water draining from ice and snow on land is decreasing the salinity of far northern oceans.
-- Many species of plankton -- the microscopic plants that form the crucial base of the entire marine food web -- are moving north to escape the warming water on the ocean surface off Greenland and Alaska.
Ice ages come and go over millennia, and for the past 8,000 years, the gradual end of the last ice age has seen a natural increase in worldwide temperatures, all scientists agree. Skeptics have expressed doubt that industrial activity is to blame for world's rapidly rising temperatures.
But records show that for the past 50 years or so, the warming trend has sped up -- due, researchers said, to the atmospheric burden of greenhouse gases produced by everything industrial, from power plants burning fossil fuels to gas-guzzling cars -- and the effects are clear.
"We were stunned by the similarities between the observations that have been recorded at sea worldwide and the models that climatologists made," said Tim Barnett of the University of California's Scripps Institution of Oceanography. "The debate is over, at least for rational people. And for those who insist that the uncertainties remain too great, their argument is no longer tenable. We've nailed it."
Barnett and other experts marshaled their evidence and presented it to their colleagues for the first time at a symposium here.
For the past 40 years, Barnett said, observations by seaborne instruments have shown that the increased warming has penetrated the oceans of the world - - observations, he said, that have proved identical to computer predictions whose accuracy has been challenged by global-warming skeptics.
The most recent temperature observations, he said, fit those models with extraordinary accuracy.
mh
2007-09-30 09:53:49
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answer #1
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answered by Mike H 6
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It's not a case of whether it WILL happen or not, its a proven fact that it IS happening, right now. Nobody can deny that the earth is getting warmer.
The issue thats up for debate is whether its humans who are causing the problem.
To cut a very, very long story short, the two sides of the arguement are...
1) Global warming is man's fault because we emit SO much watse and carbon dioxide into the atmosphere with our big factories, transport methods, poor recycling and so on, its making a sort of film around the earth, disallowing a proportion of the suns rays to get back out of earths atmosphere (but still letting it in). The biggest piece of evidence for this is that the Earth has been warming up since the industrial revolution, when human's fuel consumption rocketed.
2) The conspiracy side that claims man-made global warming is a hoax simply says that it is not our fault. Sure, the globe is warming up and sure, we are releasing more C02 into the air than we ever were, but thats not the cause of global warming. The cause is just part of Earths completely natural cycle. If you look back over thousands of years, you will see that Earths temperature has been rising and falling continuously through periods of time, which has nothing to do with us humans. What we contribute to the atmosphere is so insignificant, there are so so many gases out there, the hurtful ones are such a small percentage of them all, that it doesnt do hardly any, if any at all, damage. Evidence for this is historic records, sun spots (too long to explain, google 'sun spots and global warming') and scientific tests etc. Also, there are theories such as government conspiracys which state that they are saying its our fault because they dont want the under developed countries to develop and become most successful, they tell them they cant use lots of oil and certain others things because they will put the whole earth even more at risk, therefore limiting their development (sorry thats a really bad explaination!)
Ahh i've rambled because ive got homework to avoid hehe sorry, anyways, i mostly believe the second explaination, but maybe a mixuture of both because i have no proof personally, obviously!
2007-09-30 17:04:59
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answer #2
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answered by Anonymous
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I hate how people are being so dense and stubborn about the climate crisis. The problem is our own doing and the first step to solving it is admitting we have the problem. When the sea level rises so much that Ohio is suddenly beachfront property nobody will be asking if global warming is real. That shouldnt even be a question.
Read National Geographic and enlighten yourself.
2007-09-30 16:55:32
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answer #3
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answered by The Reginald Kipper Herring 3
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I think it is already happening. Are we the sole reason for it? I doubt it. But we are responsible for much of it. And let's face it, if it's better for the planet, it's better for us in the long run. It may be more inconvenient to adopt new measures but we can adapt. After all, that's how we've managed to survive as long as we have.
2007-09-30 16:57:01
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answer #4
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answered by gldnsilnc 6
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If the governments really believed it they'd stop flying every single day, riding around in limos and living in monster-sized houses. It's a farce. The weather in our area is just the same as it has always been.
2007-09-30 16:54:43
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answer #5
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answered by The Nana of Nana's 7
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I think it's totally screwing us, and I wanna hit the people that say it's bull because they are far away from being a smart scientist.
2007-09-30 16:55:05
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answer #6
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answered by Anonymous
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i think here in Michigan we will start having really hot long summers followed by very bad, cold stormy and snowy winters. in the future and the lakes will be drying up. its already starting.
2007-09-30 17:00:01
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answer #7
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answered by bontly 2
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God said he'd destroy the world with fire. Maybe this is the beginning of that.
2007-09-30 16:56:12
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answer #8
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answered by Aunt Doobie 6
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i really havent noticed a difference
not that long ago i had no idea what it was
its all in everyones heads
2007-09-30 16:54:56
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answer #9
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answered by Anonymous
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its already happening hun.
2007-09-30 16:54:59
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answer #10
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answered by stratonlp 1
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