http://sciencespeak.com/SimpleProof.pdf

This is a small PDF file that shows that global warming is not man made. I'm not sure if I believe it, though, as the majority of climate scientists believe global warming is man made.

The warming period around 1000AD was actually only by about 0.5 celsius whereas the warming today is up by about 2 degrees.

He must have got the charts from unreliable sources or something.

He provided legit sources. Where are your sources for the raise in 2 degrees? And can you prove that this is due to man?

i would of thought anyone who ever went outside knew the sun is what made it hotter.

there is indeed no proof that global warming is being caused by man and yes, there have been periods where it's been warmer than it is now. but I hope you can agree that reducing emissions can only do us good.

e: this doesn't exactly PROVE that it isn't man made either since no one knows what the long term effects might be, and we could see a wholly different trend in 20 years. all you can conclude from it is that current temperatures aren't out of line from past trends. then again it has spiked quite a bit since 1900 even on the graph used...

This post was edited by Gurby on Aug 29 2010 03:50pm

Regardless of wether global warming is real or not, CO2 DOES trap heat in the atmosphere. That's the whole reason Mars sustains a temperature of -25 -> 0 degrees celsius so far from the Sun. It's atmosphere is 95% CO2

But the small amount of CO2 we put in atmosphere shouldn't heat it much at all. It would take at least 5% to really cause an effect and the CO2 in the atmosphere is currently about 0.08% or something stupidly small like that I read.

This post was edited by SnIpErPRO69L337 on Aug 29 2010 04:17pm

i agree with this guy.

global warming is a joke.
in fact we've been having some really cold winters and lots of snow where i live. its a bunch of bs...
throughout the worlds history its temperature has changed... such as the ice age... that didnt happen because of man... it happened because of mother nature... and if our globe is actually warming up right now (which it isnt that much) its BARELY due to the existance of man kind.

imo

Globing Warming has always existed, Human's have just sped up the process.



You're dumb. Global warming has always existed and there's been proof. A chunk of Iceland or Greenland broke off.