and nobody is straight up saying global warming doesnt exist. the questions are:
is climate change influenced by human activity?
and
does co2 affect climate change?
global warming activists think the answer is yes to both of these questions but there is a lot of evidence supporting that both of these claims are false.
you can find the evidence all over the internet.
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"Carbon dioxide accounts for
          less than ten percent of the greenhouse effect, as carbon dioxide's
          ability to absorb heat is quite limited."
          "
Only about 0.03 percent of
          the Earth's atmosphere consists of carbon dioxide (nitrogen,
          oxygen, and argon constitute about 78 percent, 20 percent, and
          0.93 percent of the atmosphere, respectively)"
"
Quote 2: The AP said: "Carbon dioxide, mostly
          from burning of coal, gasoline and other fossil fuels, traps
          heat that otherwise would radiate into space."
          
Fact:
          Most of the carbon dioxide in the atmosphere does not come from
          the burning of fossil fuels. Only about 14 percent of it does.
"
from
http://www.nationalcenter.org/TSR032204.html
------
The Physical Evidence of Earth's Unstoppable 1,500-Year Climate Cycle
http://www.ncpa.org/pub/st/st279/st279a.html
------
"
However, the most potent
greenhouse gas is water, explains Shaidurov and it is this compound on
which his study focuses. According to Shaidurov, only small changes in
the atmospheric levels of water, in the form of vapour and ice crystals
can contribute to significant changes to the temperature of the earth's
surface, which far outweighs the effects of carbon dioxide and other
gases released by human activities. 
Just a rise of 1% of water vapour
could raise the global average temperature of Earth's surface more then
4 degrees Celsius.
"
"
Water vapour levels are even less within our control than CO2
levels. According to Andrew E. Dessler of the Texas A & M
University writing in 'The Science and Politics of Global Climate
Change', "Human activities do not control all greenhouse gases,
however. The most powerful greenhouse gas in the atmosphere is water
vapour, he says, "Human activities have little direct control over its
atmospheric abundance, which is controlled instead by the worldwide
balance between evaporation from the oceans and precipitation.""
from
http://www.physorg.com/news11710.html
------
          Claims:
"Temperatures globally
          rose about 1 degree Fahrenheit in the past century, most of that
          attributed by scientific consensus to the accumulation in the
          atmosphere of carbon dioxide and other warming "greenhouse
          gases," mostly from fossil fuel-burning."
          "The warming will continue
          as long as "greenhouse gases," primarily carbon dioxide
          from the burning of fossil fuels, accumulate in the atmosphere,
          say the U.N. panel and other authoritative scientific organizations."
                Facts:
          
Half or more of 20th century
          global warming occurred in the first few decades of that century, before the widespread burning of fossil
          fuels (and before 82 percent of the increase in atmospheric carbon
          dioxide observed in the 20th century).
          The primary greenhouse gas
          is water vapor, not carbon dioxide.
          Most of the carbon dioxide
          in the atmosphere does not come from the burning of fossil fuels.
          Only about 14 percent of it does."
from
http://www.nationalcenter.org/TSR020905.html
------
i didn't want to have to copy and paste a ton of quotes into here but you people need to realize that not all researchers agree on the theories that the media keeps presenting as true. I am not saying one theory is right and one is wrong I am just saying that there are multiple theories and the media has just chosen to publicize one that does not have any better proof of existence than any of the other theories.