What do you think Global warming is caused by?

Question

Plants

Answer 1

All that f** ing campaigning.

Answer 2

carbon monoxide......

Answer 3

Natural earthly cycles. It is apparant in longterm history - Earth has natural cycles of heating and cooling.

Earthes largest greenhouse gas is water vapor, and Nature emits 90% of All carbon dioxide (volcanoes, mostly).

So, it is natural, not human made.

Answer 4

I heard that cows emit 20% of the total of methane, co2, etc. that is affecting the at'sphere.  Anybody know how to make an expandable bovine fartbag?  We also need a one-cow rotary-f**t-engine auto, now, to replace those hideous mini Coopers.

Answer 5

This is my personal opinion, so take it witha grain of salt, it may be made up to make people ask that very same question, one thing i do like about it is it does make people think twice about what they do to the world around them

Answer 6

There are many basic scientific facts which can only be explained if the current global warming is being caused by an increased greenhouse effect due to carbon dioxide accumulating in the atmosphere from humans burning fossil fuels.

For example, the planet is warming as much or more during the night than day.  If the warming were due to the Sun, the planet should warm a lot more during the day when the Sun has influence.  Greenhouse gases trap heat all the time, so they warm the planet regardless of time of day.  Another example is that the upper atmosphere is cooling because the greenhouse gases trap the heat in the lower atmosphere.  If warming were due to the Sun, it would be warming all layers of the atmosphere.

http://answers.yahoo.com/question/index;...

We know it's warming, and we've measured how much:

http://www.epa.gov/climatechange/science...

Scientists have a good idea how the Sun and the Earth's natural cycles and volcanoes and all those natural effects change the global climate, so they've gone back and checked to see if they could be responsible for the current global warming.  What they found is:

Over the past 30 years, all solar effects on the global climate have been in the direction of (slight) cooling, not warming.  This is during a very rapid period of global warming.

http://news.bbc.co.uk/2/hi/uk_news/62902...

http://www.pubs.royalsoc.ac.uk/media/pro...

So the Sun certainly isn't a large factor in the current warming.  They've also looked at natural cycles, and found that we should be in the middle of a cooling period right now.

"An often-cited 1980 study by Imbrie and Imbrie determined that 'Ignoring anthropogenic and other possible sources of variation acting at frequencies higher than one cycle per 19,000 years, this model predicts that the long-term cooling trend which began some 6,000 years ago will continue for the next 23,000 years.'"

http://en.wikipedia.org/wiki/Milankovitc...

http://www.sciencemag.org/cgi/content/ab...

So it's definitely not the Earth's natural cycles.  They looked at volcanoes, and found that

a) volcanoes cause more global cooling than warming, because the particles they emit block sunlight

b) humans emit over 150 times more CO2 than volcanoes annually

http://volcano.und.edu/vwdocs/Gases/man....

So it's certainly not due to volcanoes.  Then they looked at human greenhouse gas emissions.  We know how much atmospheric CO2 concentrations have increased over the past 50 years:

http://en.wikipedia.org/wiki/Image:Mauna...

And we know from isotope ratios that this increase is due entirely to human emissions from burning fossil fuels.  We know how much of a greenhouse effect these gases like carbon dioxide have, and the increase we've seen is enough to have caused almost all of the warming we've seen over the past 30 years (about 80-90%).  You can see a model of the various factors over the past century here:

http://en.wikipedia.org/wiki/Image:Clima...

This is enough evidence to convince almost all climate scientists that humans are the primary cause of the current global warming.

Answer 7

Chuck Norris got cold so he turned the sun up!

Answer 8

Natural causes: animals and plants have a cycle of doing this every 100, 000 years or so.

AND

Humans: humans have contributed to the amount of CO2 in the atmosphere since the Industrial Revolution.

Answer 9

humans putting to much gas into the atmosphere and removing too much forest to help absorb some of the CO2

Answer 10

if u believe in global warming ur pathetic and gullable, its a hoax, think outside the box

mars increased in temp much faster than earth at the atmosphere

is it just me or are there little green men in mars causing mars warming?

Answer 11

Natural cycle. Mainly the sun.

Answer 12

to Marc above-

True earth has natural cycles but the fact that CO2 levels have risen exponentially over  the past century show that it isn't natural anymore. Co2 levels fluctuate naturally but not this much. It is clearly humans who have been done this.

Answer 13

The IPCC and the organization yelling loudest about global warming (the U.N.) are political organizations. IPCC is the Inter-governmental Panel on Climate Change, the name itself indicates a bias in favor of the idea we're facing a problem from a changing climate.

I don't trust politicians in my own state, I really don't trust politicians on a national scale. Imagine how much trust I have in politicians from other countries whose only 'solution' to global warming is to cut away 88% or so of our industrial production for an effort they admit still won't stop global warming in time to save us. If they're right, there's nothing you can do. Fortunately, I don't think they're right, I think they have an agenda. If they can control how much CO2 you emit, which is the basic building block for all us 'carbon-based lifeforms'  - they own you, body and soul.

What politician wouldn't dream about that much power? The fact is there is no consensus on this or any other scientific theory. There is only proving a theory or disproving it thru testing and observation. Saying there is a consensus doesn't change the fact that at one time every scientist living was sure there were only 4 elements or that sub-atomic particles would behave exactly the same as the particles they could observe. If every scientist in the world began to tell me dihydrogen monoxide killed more people every year than any other chemical, I still wouldn't panic.

Global warming isn't caused by plants, if anything they tend to cool the planet due to their own carbon cycle. I think AGW or human-caused global warming is caused by...politicians and scientists who are funded primarily by those same politicians. If they produce a result that disagrees with AGW, do you think they'd rush to publish it and risk their funding? Or maybe run a few more tests first? I know what I think they'd tend to do and it's unkind to point it out but it's also human nature and that's really hard to argue with.