Posted by
chuwbaka
The earth's climate is definatly warming up (despite the foot of snowfall in Las Vegas haha) but we arn't playing as big of a role in it as everyone thinks. seriously, has the earth's climate not changed before?
yes
Ice age is a great example, there were no cars then. The vikings settled green land which means it was warmer then than now, did the Vikings use motorized boats? i certainly don't think so. Mars is also warming up, there are no humans there to affect the climate.
I understand what you are trying to say, and its the blanket a lot of us like to cling to. That the Earth has gone through cycles before, and this is one of them. I would think so too, except that there is no frikkin way in hell that we can pump up billions of tons of CO2 that has been out of the natural cycle for millions of years, and expect it to have ZERO EFFECT, especially when we know (yes, its a fact) that its greenhouse gases like CO2 which insulate the Earth and trap heat.
Earth works in balances, and due to natural change, it is constantly adjusting itself. There are many, many things we don't know about. Take for example why this warm period since the last ice age has lasted unusually long. Some say the Earth may have developed complex enough biologies that have stabilized the temperatures and hat not. Personally, i have no clue.
But we are upsetting the balance (on a geological time scale, VERY QUICKLY), like a volcanic eruption. We are changing the composotion of the atmosphere, adding more insulating gases, like CO2 and methane. Science tells us that more insulating gases equals more warming. Of course, its way more complex than that, but that is the jist.
So again, while people who dismiss AGW (human-caused global warming) as a hoax but admit that the world is warming, they have to explain why its warming, AND why the insulalting gases we are adding to the atmosphere are not having the warming effect that would be expected. AGW explains both of these, and until someone can show me an article that explains all this better than AGW, i will continue to side with the IPCC.
The theory of global warming is being repeated so often that people are starting to think of it as a fact... no one knows exactly why the earth is warming up, although some people think they do cough al gore cough... and seriously how the hell did al gore win a nobel prize for a theory? it isn't even proven.
But its more plausible than saying we all our indusrty and pollution do have zero effect on the Earth. Remembe, it was only 20 years ago we had to go through the same bullshit with CFCs and the ozone layer, people (industy mostly, and the proaganda they paid for) crying that humans were innocent because they didn't want to give up their fucking hairspray bottles.