Obviously HUMANS. Due to industrialization there is pollution. Now coz of pollution sum harmful gases like carbondioxide and carbon monoxide are released in the air . These gases trap solar energe and have created a hole in da ozone layer. So the harmful UV rays reach da earth ,are trapped by these gases and thus causing global warming. So urbanization,industrialization are responsible for this. And who is the major cause for this??? HUMANS,HUMANS HUMANS,
2007-11-20 00:29:24
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answer #1
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answered by school gal 2
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Your question is very controversial. You will get different answers from different people. Here's my answer, based on my research. First off, they used to call it "Global Warming" but now, as you can see in Obama's speech, they call it "Climate Change." The reason for this is because many scientists don't agree that there is such a thing as Global Warming. In fact, the news came out a few months ago that over the last ten years the planet's mean temperature has actually dropped, rather than increased.Thus, the name change. Many scientists think Climate Change is caused by rising CO2 levels in the atmosphere. These rising levels, they say, is because of fossil fuel burning--the oil we burn to run our cars and heat our homes, etc. However, other scientists point to the fact that in the history of earth, thousands and millions of years ago, there's been times when CO2 levels have been much higher than they are today. Obviously cars and heated homes weren't around millions of years ago. The bottom line is, no one knows whether Climate Change is caused by humans. Many scientists believe much more research needs to be done to answer the question.
2016-05-24 07:28:16
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answer #2
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answered by Anonymous
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Your question contains an interesting assumption: "Who" versus "What." Similar to the famous "Have you stopped beating your wife yet?"
The truth is that the global climate is the most complex of all complex systems with which humans routinely interact. Burning fossil fuels is not a good idea, whether or not this leads to global warming. Spewing pollutants from dirty coal-fired plants (primarily China) cannot be a good idea. Regardless of whether humans are causing global warming (we simply do not know) much of what the Global Warming Movement wants done makes sense. Taking resources from the countries best able to conduct the research and development necessary to reduce reliance on fossil fuels and giving those resources to countries less able to do so (that's the stated intent of the Kyoto Protocols) makes no more sense than burning fossil fuels.
The truth is that global warming cycles have been going on for millions of years as have global cooling cycles. The long-term trend (4,000 plus years) is global cooling. The short-term trend (about 100 years) is global warming. We should be concerned about global warming and about every impact human activitiy has on the global environment. Taking drastic action based on a short-term trend is not something for which I have seen adequate evidence.
2007-11-20 07:03:58
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answer #3
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answered by byhisello99 5
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Historically all warming and cooling has been caused by natural cycles. The problem now is that those natural cycles should be having very little effect on our climate but temperatures are rising faster than has ever before been known.
The reason being the amount of greenhouse gases we emit. There are natural greenhouse gases that keep the planet at a habitable temperature, effectively they're our insulation. By adding more of these gases to the atmosphere we're increasing the insulative effect and trapping more heat. Inevitably the temperatures rise.
The current warming is therefore mainly caused by humans but there is an underlying natural warming trend.
2007-11-19 21:08:06
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answer #4
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answered by Trevor 7
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climate change cycles come and go. The truth is - climate is far too complex to accurately model and predict, so I don't think anyone can say with CERTAINTY that man is causing the most recent warming trends. What is PROBABLY true is that we are in the midst of a NATURAL warming cycle, and human activity is adding to it and making it go a little faster than it otherwise would.
2007-11-20 00:11:16
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answer #5
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answered by Slappy McStretchNuts 5
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How did the Ice Age end if only man causes global warming?
2007-11-20 01:45:24
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answer #6
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answered by Bill W 【ツ】 6
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To my knowledge there is only one proven cause: aircraft.
You take the planes out of the sky, there is an immediate change in temperature by over 1 degree Celsius (diurnally). (Generally, back to pre-1950's temperature levels: before the "jet age".)
We are not sure on what aspect(s) of aircraft dynamics cause the temperature change (e.g., direct deposits of not naturally occurring organic or inorganic chemicals, contrails, ice crystals, direct deposits of carbon, synergistic effects, etc.).
There is also the subject of aircraft emissions' masking, which appears to confuse scientists on confirming a clear cause. http://www.pbs.org/wgbh/nova/transcripts...
There is also the question about why the arctic is warming and the antarctic is not which, also appears to be aircraft and global winds related, (see: Ruthenberg, 2007 ).
Unlike what you read in the papers:
There has been a ebb and flowing of warming for eons; however, it appears that the concerned increase, since the 1950s, IS generally caused by man and, there is an immediate effect, when you take the planes out of the sky.
Why you don't hear about it in the US? It is because any fix will hurt the air transportation & recreation industries bottom line; (hint: That is why the US and airlines are fighting it: http://www.forbes.com/feeds/ap/2007/11/1...
http://www.enn.com/top_stories/article/3...
For a number of reasons, including being too late, technology is not the answer as pointed out by the US Government Accounting (Accountability) Office and IPCC; you must limit flights.
NOTE: We are very concerned about climate change and have been working at the forefront for over a decade, since we identified aviation as a major proven man-made cause, having an immediate effect on, at least, regional temperature.
At our urging, European countries got aviation on the IPCC's agenda.
Many climatologists, IPCC and others are many years behind the a main cause of climate change -- aviation.
This is because governments, led by the UN, kept aviation out of Kyoto and because that the industry itself is in charge of its emissions (International Civil Aviation Organization, ICAO).
However, as late we were, we were able to introduce aviation issues to the IPCC through several European governments and the EU. Thus, generally, scientists are still about 2-3 years behind.
Below is a cited synopsis of the issue and a direct cause and effect example:
Please let me know if you have any questions.
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2007-11-20 00:24:04
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answer #7
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answered by Jack S 3
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Everyone is responsible for Global warming. I am positive all of us drive cars that run on gas, take long showers, leave lights on throughout the house, and maybe even remove some trees.
2007-11-20 07:44:59
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answer #8
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answered by Anonymous
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Mother Nature.
2007-11-19 20:32:51
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answer #9
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answered by Anonymous
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anthroprogenic reasons
which means us, human beings are the reason for it.
but its who in the world do we put the blame on?
western developed countries or the third world?
and because the third world has the most impacts of global warming should we, the western civilized consumer have to pay a debt to them for our consumption to global warming?
its quite interesting and confusing
im taking geography development and the environment right now and its a real eye opener of what other effects global warming brings, not just environmental, but the social and poloitical sides of it.
if youre in college i recommend taking a class similar to the one i am talking about :]]
2007-11-19 20:24:49
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answer #10
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answered by tawn 5
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