The real cause of climate change is.....
Actually, solar activity. Now, you doom- and gloomsayers, ask yourselves how we can change the pattern of the sun's activity - hmm tough one that....
Before you can say CO2 levels are increasing so it must be our fault, just remember that variations in CO2 levels in the atmosphere follow temperature change, ie cannot possibly cause temperature change. The reason for this is that the oceans of the world absorb and release CO2 after the temperature changes.
Instead of wasting billions of dollars trying to change the unchangeable, we should spend a small amount on trying to cope with change (but think of all those lost 'research' grants!).