The logical mistake they make is that they don’t understand that the past change was often driven by naturally increased CO2 levels! In other words, mankind is simply driving exactly the same natural process.

That’s the danger of grasping onto the half-truths circulating around about global warming (particularly the half-truths that supposedly provide reason to be skeptical). The other half of the truth is necessary to fully understand the situation.
References :

if it’s okay for humans to experience some ICE AGE again then go ahead but i think everyone is not cool about the idea of having an ice age because many will die… ARE we too selfish to the generations that will come after us, having them inherit some dead chamber of cold ice and reduced vegetation and source of food??

i have read that The global atmospheric concentration of carbon dioxide has increased from a pre-industrial value of about 280 ppm
to 379 ppm3 in 2005. and that CO2 atmospheric concentration in 2005 exceeds the natural range over the last 650,000 years which is just 180 to 300 ppm, as found from the ice cores.

on methane, another green house gas, global atmospheric concentration increased from a pre-industrial value of about 715 ppb
to 1732 ppb in the early 1990s, and was 1774 ppb in 2005. like CO2 atmospheric concentration of methane in 2005 also exceeds the natural range of the last 650,000 years which was just 320 to 790 ppb as found from the ice cores.

and thirdly, on nitrous oxide, nitrous oxide concentration increased from a pre-industrial value of about 270 ppb to 319 ppb in 2005. and it is said that more than a third of all nitrous oxide emissions are anthropogenic and are primarily due to agriculture.

so you see humans has so much contribution to the increase in global temperatures as seen from the data comparing the levels of green house gases (CO2 methane and nitrous oxide) during pre-industrial period with the levels during the industrial period. and the industrial period is characterized by massive use of fossil fuels u see… and the utilization of these contribute to the increase in green hous gas levels and thereby the warming of the earth…

and it’s pretty clear with the kind of weather too now… i do not know if changes are noticeable in all parts of the world but here in my place… januaries and februaries and decembers are supposedly just about cold days… weird though that it rains a lot now, it’s still cold but 2 or 3 days of rain is usually followed by like 2 days of pure hot sunny days which i do not expect on these cold months… and it is just this year and the december that passed wherein there is frequent raining and then sunny hot days and frequent rains again… weird… climate change for sure…

and the greater the global temperatures increase, i believe crazier the weather and the climate itself will be!!! with the so much unexpected changes in the weather’s status and severity… which can affect vegetation and animals and thereby humans because we are all interconnected in the food chain…

i have heard about this global warming thing when i was like 5 or 6 but it is just now that i am 21 and had graduated college and doing nothing recently, that i actually see this issue as some BIG DEAL… (probably because i got more time watching natGeo and discovery channel and be more informed.heheh)…and it is really a BIG DEAL too anyway…

=-)
References :
–http://en.wikipedia.org/wiki/Global_warming
–http://ipcc-wg1.ucar.edu/wg1/Report/AR4WG1_Print_SPM.pdf

Another reason is that this benefits the governments. They can impose stealth tax and congestion charges, whatever you fancy, under the pretense of global warming, and this increases their revenue. A lot of scientists and and scientific organisations are state-funded, so think of this like a product. The government is advertising global warming, and they have their own "in-house" scientist to back up the facts, and there’s no independent scientist that can prove them wrong.

Pushing the boundaries of conspiracy and anarchism I know, but this can also be attempt on our governments to crack down on our freedom of movement. Soon we’ll only be able to move on public transport, to certain, specified places, and we can be kept in certain areas.

Moving away from conspiracy, you will find that the Earth follows a 2000-year cycle, with peak height and cold every 1000 years. The Vikings didn’t name Greenland because it had no grass, they named it because back in the early centuries after the fall of Rome and the beginning of Feudalism, the global climate was hot, so Greenland was covered in grass-unless of course the Vikings did have an impeccable sense of sarcasm-and there was not a single car in sight.
References :

Government spends billions for studies by scientists who seek to prove man-made global warming.

I like coral islands too. The oldest ones are 700 years old. I.e., they date back to the last warm period.

Unless Eric the Red and William the Conqueror drove SUVs…..
References :

People like you irritate the fuck out of me. Do a little bit of research before posting such idiocy.
References :

Saying that you have to believe by definition makes your view a religion, and not science.
References :