Are you a "green" consumer? Even if your intentions are good, your "Earth friendly" soap and organic ice cream may be driving species to extinction and heating up the planet, especially if these products contain palm oil.

So it's official. Climate change is in. Global warming is hip. Pop stars are urging action. It seems not a day passes without another big business making a green pronouncement. The scale of the problem is clear but there are still very few big...