I can't believe how hard this is for some people.
Take this example: You get up and turn the heater (the sun) up in your house (earth), and at the same time your grandmother(people) farts. Soon after, the house get hot! Do you blame your grandmother?
I am not going to argue, we are all grownups (I think anyway), and as such should be able to do our own research.
Also, to the people out there that think we could power Australia, or any country for that matter, by wind, solar, thermal, farting or any other crap, please tell me how. Include how much land space is needed and how you going to manage the load on the grid in your plan.