Not necessarily. Indeed, not even probably.
The earth, over its ~5 billion year lifespan, has undergone innumerable climate changes. These changes are due to natural ocourances, and there's -nothing- that can be done to stop those. Should we learn that the temp rise is due to natural occourances (a perfectly possible scenario) then we can't do squat about it.
Please understand that the fact that we know about a climate change is because it leaves behind evidence taken from very very very long periods of time. Man's existence on earth, if compared to a complete calendar year, is equal to less than an hour. Change on earth occurs very slowly, excluding an impact from a foreign object. The increased Co2 levels increased at a rate we have never seen before, and we know that humans can increase Co2 levels. We also know that increasing CO2 will increase the greenhouse effect. Therefore, the IPCC has determined that Global Warming is man made.
M14Shooter, I believe we need to analyze the effects of going "green"; or in a more literal sense, becoming a society that utilizes resources that can be regenerated without harm to the environment.
If USA stops burning fossil fuels
1. That leads to revolution around the world, because most nations follow our lead.
2. We devastate the oil economies of our current enemies.
3. We prosper on a level not seen since the industrial revolution, since we would be the first to fully use renewable resources.
4. We breathe cleaner
There are more benefits, but those are the first that came to mind.
If we continue:
1. We are crippled once we run low on oil, basically ending this country as being a superpower.
2. The Middle East gains power and wealth
3. Shellfish populations continue to decline, due to carbon dumping in the ocean, which hurts biodiversity throughout the oceans. That also hurts humans in many ways.
4. If we are wrong, and emitting greenhouse gases are the cause then we're basically fucked b/c we would continue to ruin our land, water, and air. Making a self-extinction of the human race.
Those are just the changes in this country, not the world.