http://www.junkscience.com/Greenhouse/
2006-12-30 14:57:29 · 14 answers · asked by godlessinaz 3 in Environment
Wow! Lot of people think this is a loaded question! Seriously, I want to know why you think GW is caused by humans.
2006-12-30 16:06:03 · update #1
Also, I'm asking what makes you think GW is caused by humans, not proposing that it doesn't exist at all. It's a non-loaded direct and simple question, seriously.
2006-12-30 16:08:16 · update #2
I believe that we do contribute a little, though I think that most of what we consider "Global Warming" is nothing more than a natural shift in the Earth's climate. We think we know so much about the weather when we have only been recording it for the last couple hundred years! I think it's mostly hype and a natural phenomenon.
2006-12-30 15:03:40 · answer #1 · answered by Strikernow 4 · 3⤊ 2⤋
The problem is determining just how much of the global warming is caused by human activity. No scientist in the world would deny the world is warming up - the evidence of that is everywhere. The problem is that the earth goes through natural cycles of warming and cooling of it's own accord.
We know that greenhouse gases increase the rate at which the planet warms up but what no-one can yet seem to agree on is how much of the global warming is the result of man's activities.
The only people who deny global warming exists are those who are financed by or have a direct interest in denying it. Don't forget that until about 5 years ago the tobacco industry were telling us that smoking was harmless despite overwhelming evidence to the contrary - the self same thing is happening with global warming.
Human activity undoubtedly contributes to global warming and the consensus seems to be tending towards a figure of between1 and a half degrees and 2 and a half degrees Celsius over the next 50 to 100 years out of a total rise in temperature of up to 5 degrees Celsius.
The science behind the causes and effects of global warming are extremely simple and it can be easily demonstrated using schoolboy science. Anyone who denies it is either extremely stupid or has a vested interest in concealing the facts. It would actually be possible to put forward a more convincing argument that the sun won't rise tomorrow.
2006-12-30 23:10:58 · answer #2 · answered by Trevor 7 · 2⤊ 1⤋
Global Warming is not CAUSED by human activity. It is EXACERBATED by human activity. Global warming is a natural process that would happen whether humans exist or not. The issue with global warming is that humans are making a bad problem worse.
Global Warming + humans = Uncontrolled Global Warming.
The evidence exists that carbon dioxide that humans are producing is making the oceans and air warmer causing more unpredictable weather patterns. Now that people live on every corner of the the planet, any change to the climate is bad natural or not. We don't have the luxury of moving everyone 1 degree latitude north because the temperature is increasing every year and become too hot for the people or the food crops. Would it be realistic if everyone had to move their houses every 10 years? Humans have built levees, dams, irrigation, and big cities that cannot move or adapt to major changes in climate. Also realize that 0.03% carbon dioxide is enough to keep all plants alive and the 3rd rock from the sun warm enough for 6 billion humans to survive. 70 tons per year of new greenhouse gases that would naturally be buried in the ground cannot have no effect on life on the planet.
www.junkscience.com actually uses some really good arguments on the science of global warming gases. If you read between the lines though, you'll notice that they don't actually say that humans aren't causing global warming. What they are saying that global warming isn't catastrophic because 70% of greenhouses gases effect is water vapor while only 4% to 8% is caused by carbon dioxide of which half is created by humans. However, as the planet heats up as it is doing now, more water vapor would be produced from evaporation from the oceans and would increase the greenhouse effect. Probably no one has really measured it yet, but factories produce a lot of water vapor when they use water to cool down the waste heat produced by factories. So even if we're only talking about water vapor, humans are affecting the amount of water vapor in the atmosphere too.
2006-12-31 04:24:45 · answer #3 · answered by Verves2 3 · 0⤊ 1⤋
There are dozens of reasons why Global Warming is occurring. The 2 most important have to do with CO2 levels and ozone depletion. Due to the manufacture and usage of unnaturally occurring chemicals, our ozone layer is weakening. Because chemicals, such as those present in some arousals, are not produced in large quantities in nature, they must be produced in a lab. As a result of the usage and production of these gasses more solar radiation is able to break through and enter our atmosphere, creating a warmer climate. The second cause is......Trees. Because of our industrialization and expansion trees are cut down at alarming rates. Trees are key members of our ecosystem, they exchange CO2 (carbon-dioxide) for O2 (oxygen). Simply stated we cut down trees for paper, lumber and for developmental reasons, because of this there are less trees manufacturing O2. There is an increase in CO2 levels in our atmosphere which is directly affecting our global climate.
2006-12-30 23:27:50 · answer #4 · answered by anthony111084 1 · 2⤊ 1⤋
Because the climate scientists who study this stuff know all about natural causes. And they believe that man is causing an unusually fast warming that threatens agriculture and coastal areas. It will cost rich countries huge amounts of money to deal with, in poor countries people will die of starvation due to disruption of agriculture.
I've heard the junkscience guy is funded by industry. The fossil fuel industry will lose billions if we do something about global warming, so they'll spend millions to convince people that it's not real. But among scientists the debate is not about if it's happening, it's about exactly how fast. And it's not if it will be bad, it's about exactly how bad.
2006-12-30 23:05:00 · answer #5 · answered by Bob 7 · 2⤊ 2⤋
Yes I do, and the proof is showing all over the world. The USA has the worst record for car pollution. Ever other major country has improved this but us...California is starting to, thank God. Watch "An Inconvenient Truth" if you want some examples. Why do people rage against something that is good for the air and water, something good for the environment, like we are proposing something terrible for you to help out with?
2006-12-30 23:39:42 · answer #6 · answered by eva diane 4 · 2⤊ 2⤋
Unlike you, I do not base my opinion on my own wishful thinking...I do not base my opinion of global warming on political beliefs or political spokesmen like O'Reilly and Rush and marginal opinions of non-scientific web sites. The view that global warming is being heightened or even caused by human is supported by 95% of all scientists...If I were you, I would listen to someone who really knows and is not simply trying to influence you to their selfish view...don't be their drone, find real answers.
2006-12-30 23:08:44 · answer #7 · answered by Ford Prefect 7 · 1⤊ 2⤋
Scientists predicted that what is occurring now would happen just as it has, by analyzing emissions from Human activity. This was predicted years ago and has transpired just as predicted. To deny the truth is to prove how stupid one can be.
2006-12-30 23:13:29 · answer #8 · answered by iknowtruthismine 7 · 2⤊ 2⤋
because it is, maybe not entirely, but mostly. One would have to be completely daft to not realize how much people are changing this world. It's a small world, drive thirty miles a thousand times and you've gone clear around it.
2006-12-30 23:05:26 · answer #9 · answered by Stan S 1 · 2⤊ 2⤋
only slightly and if the USA is the only one that trys to remedy this it will do very little good. But it will put the USA at a disadvantage while trying to compete with other countries who ignore this.
2006-12-30 23:12:44 · answer #10 · answered by William T 3 · 0⤊ 2⤋