[QUOTE="h8jlhbtw"][QUOTE="mark4091"]first of all us humans have been around for however many years, and how long has this planet been around for??? who is to say that we aren't just getting farther and farther out of our last ice age, plus if it was our cars producing global warming we would have seen it sooner, we used to use lead fuels and we didn't see this, now with more eco-friendly fuels we all of the sudden say we are doing this. I think one of the biggest signs is if we stop pumping fossil fuels into the atmosphere this second we would see no change at all, but if our fuels are causing it how could not using them, not make a difference? MordusMythrilUs humans can cause temendous changes to the world that we live in. We can destroy the planet hundreds of times over with our nuclear weapons. We burnt a hole in our ozone layer. Why is global warming so hard to believe? Almost every scientist believes that it is occurring. Also, it's not just our cars pumping co2 into the atmospehe, it's industrialization.
Guess what happens when the Earth overheats? It does exactly what nature intended it to do, it re-balances it's own equations, in this case, it melts the polar ice caps, which will mix with the hot water of the ocean. That will cause the currents to change, and when that kinda stuff happens, major weather changes occur. Essentially, we will be thrown back into another ice age.
I didn't know Nature had a mind of its own...
IT is a fact that the earth is getting warmer, why does anyone get upset with you when you don't agree on the exact role that humans play in this process? louislegrosBut is it a fact that humans are the main cause of this? No, that's just a theory.
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