I have to agree with iuliuspro. People seem to confuse co2 with pollution. Pollution and Global Warming (another hoax) are two different things. For those of you who want to reduce co2 emissions I have a simple question. What is the optimum level of co2 in the atmosphere? What target are we aiming for? Zero of course would kill all the plants on earth. That doesn't sound too good. And since co2 is only a trace gas in the atmosphere now, maybe we should be more concerned about increasing co2. Which is actually what many greenhouses do to increase plant growth. Before we start spending billions of dollars reducing our "carbon footprint" (already too late) maybe we should have some idea of where we are going.