Can you give me hard evidence that HUMANS are causing global Warming?
So can anyone show me or prove to me that global warming exsists and that Humans are responsible for it?
Answer:
The problem with getting evidence for this, as with any scientific theory is that first you need enough of a background to understand the evidence and decide between competing theories. With most scientific arguments the majority of people don't have the background to do this, so they wait for a scientific consensus and take the conclusions on faith.
The problem with global warming is that the only consensus in the scientific community is that average temperatures have risen slightly(1 degree C) over the past 150 years. Since this is an average increase, in some areas it has gone up more and in others it is actually cooling. This allows individuals to show either extreme warming or cooling effects based on which evidence they choose to use.
Since global warming is not a phenomenon that can be either measured or even predicted without use of fallible computer models, any attempt at this point to show causation cannot go beyond speculation. For political reasons, certain elements outside the scientific community repeatedly claim that warming is man-made. They haven't produced evidence, much less proven this contention because at this time no causative factors for global warming have been proven.
The entire discussion needs to be removed from the politicians and returned to the scientists where it belongs.
No one can show you evidence, that contradicts what you have already made your mind up to believe.
When you realize, what water vapor actually does in the environment, you will see that the people that organized the data you are deriving your assumptions from, are overlooking critical factors in their own fields of expertise to help you believe that way.
Its a rogue planet called Planet X they have known about it for years
No, but I strongly suggest reading the book 'The Weather Makers' by Tim Flannery. It provides many viewpoints and believable evidence on the issue. Happy reading, and I hope you find the answers you're looking for. =)
The only evidence I can give you is that Global warming is basically due to the hole in the ozone layer. The hole gets bigger because of pollution. In the first place the hole was made by CFC's. Without the ozone layer we would be heated and dead in a matter of seconds. The ozone layer protects us from dangerous sun ray's. So yea we are the cause of the hole in the ozone layer, therefore we are the cause of global warming. Please Stop Pollution. (so the hole won't expand)
I want to know about global cooling. The ice age worries me more than moving further North.
Ditto annas k, well said
Not in a FunQA.com. That would be like saying prove the Theory of Quantum Mechanics in 500 words or less.
You'll actually have to read some links and maybe do some library research. Read the paper in the Source below, it's solid proof, and has been replicated many times. Here's a simple picture taken from that data.
The data clearly shows that, starting about 40 years ago, Man took control over climate away from nature.
http://www.globalwarmingart.com/wiki/ima...
We need to give it back.
This is why our small contribution of CO2 is a serious problem:
http://environment.newscientist.com/chan...
Here are refutations of all the skeptics arguments:
http://environment.newscientist.com/chan...
And proof that the vast majority of scientists believe global warming is real and mostly caused by us.
http://en.wikipedia.org/wiki/scientific_...
http://www.sciencemag.org/cgi/content/fu...
The best compilation of all the proof is this. 1000 pages long, hundreds of references to the scientific literature, 150 authors, hundreds of reviewers.
http://ipcc-wg1.ucar.edu/wg1/wg1-report.
summarized at:
http://www.ipcc.ch/spm2feb07.pdf...
A relatively short and simplified summary of the proof can be found at:
http://profend.com/global-warming/...
First to correct your errors.
1) The trend is not that temperatures are falling.
"2007 is expected to be hottest year on record"
http://www.iht.com/articles/2007/01/04/n...
Or just look at this graph:
http://www.cru.uea.ac.uk/cru/info/warmin...
2) Water vapor is responsible for most of the greenhouse effect, but atmospheric water vapor concentrations are dependent upon atmospheric temperature. The hotter the planet is, the hotter the atmosphere is, the more water vapor it can hold, then the planet gets hotter, etc. It's a feedback and indicator of global warming, but water vapor does not CAUSE global warming. Something else has to cause it and water vapor will then amplify the global warming.
3) Humans are responsible for almost the entire increase in atmospheric CO2.
http://en.wikipedia.org/wiki/image:mauna...
This increase is what's throwing off the natural carbon cycle and causing global warming. We don't emit a lot of CO2 compared to what's in the atmosphere, but it's a cumulative effect that throws off the natural cycle.
Now for some basic anthropogenic (human caused) global warming evidence:
We know from ice core samples that historically when global warming occurred, atmospheric carbon dioxide concentrations also increased, but not until about 800 years later.
http://www.daviesand.com/choices/precaut...
Many global warming deniers think this is evidence that CO2 can’t cause global warming. In fact, that’s the very first argument in the terrible Great Global Warming Swindle. On the contrary, this is actually evidence that human greenhouse gas emissions are currently causing global warming. Compare the following global temperature and atmospheric CO2 concentration plots from 1960-Present:
http://www.cru.uea.ac.uk/cru/info/warmin...
http://en.wikipedia.org/wiki/image:mauna...
As you can see they’re both rising – not with an 800 year delay, but at the same time. If CO2 wasn’t causing global warming as was the case in the past, then why is there no 800 year delay?
This only proves a correlation between CO2 and global warming and not a causality. The reason we’ve concluded that greenhouse gas emissions are causing global warming (or more accurately, accelerating it) is because natural causes can’t account for the increase in global warming over the past 40-50 years. They account for most of the warming prior to that, but climate models have determined that greenhouse gases are responsible for about 80-90% of the recent global warming:
http://en.wikipedia.org/wiki/image:clima...
The very first inputs into climate models were solar, volcanic, and sunspot contributions, but they simply couldn’t account for the recent acceleration in global warming. Thus climate scientists have concluded that humans are the primary cause.
Global warming is a natural cycle that is greatly advanced by humanity ,we are making it worse and quicker on every level
wirh deforestation,desertification,... Agro Chemicals ,polution of cities and industry and the internal combustion engine ,
polutiing the air,Waters and Soils
http://answers.yahoo.com/question/index;...
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