Luckily the whole world is setting up big energy efforts to reduce the emissions by humans, which I think is a great idea. Oil and Coal are exactly what they are, Archaic. Until other forms of energy really begin to make an impact, the oil industry will continue to control the markets. However, the oil industry is slowly dying along with the burning of coal. If these 2 forms of energy become outdated then we will start to see a cleaner impact on the earth. That doesn't stop the earth from doing what it wants. We could still go trough cycles of warming and cooling like we have been for the past 10,000 years. Luckily, the earth has been stable enough for this not to cause a major impact in our society today. Places like China are a big problem and really needs to work on their emissions. China is the worst pollutant in the world and you can see how nasty that life can be if it gets out of hand. We don't need our people growing and living through such smog.
Also, Volcano eruptions like the one recently in Chili is a great example of how no matter how hard you try, the earth will always spew trillions of chemical compounds into the atmosphere at any given time and there is nothing you can do about it. The crazy part is, the earth is soo large it broke down those compounds and we still didn't see any effects of the volcano here in America.
The Humans only emit about 6% of the total C02 count into the atmosphere. While you could say this 6% is keeping our planet warm or "adding to the problem", it is still a relatively low amount considering the size of the earth. That volcano spewed out more chemicals in the days it erupted than all of the emissions by humans combined in South America in the last 30 years. While humans can do whatever they can to reduce the emissions. We cannot undermine the earth in what it is capable of doing.
Also Craz, I think landfills will start to shrink as the technology to burn trash is becoming better and better. Look at how Sweden has dealt with the trash problem. They actually buy trash from other countries to burn for energy. Sweden has virtually no trash landfills. IMO that will become a future energy source around the whole world.
Oil still has such a large impact on the world. look at how it is effecting the stock market right now. There is no way we could simply stop the production of oil tomorrow, however, other energy sources are starting to make oil out dated and in the next 15 years oil may not be as big as it once was. This would go a long way into making the earth a cleaner place to live.
All in all we have seen how emissions can cause much smog and nastiness by looking at China and now we can see that it is not a great society to live and breath in. Hopefully we can do our best to reduce the emissions all over the world so that the sky atmosphere is cleaner, but humans most likely wont control the global temperatures and the earth is full of surprises that we cannot control.