I think that most people who do not have severe cognitive deficiencies are capable of understanding what "efficient charities" are. I think that most people are quite capable of understanding the statement, "Ethanol will waste a lot of money and will still generate as much (or more) pollution than gasoline. To top it off, it will also raise the price of food products, both for you and for people who will actually starve as a result." Most issues like this, one can figure out what's going on by reading wikipedia for half an hour. Perhaps that takes a high IQ, but from my experience, when people are given clear and accurate arguments, they are generally capable of getting them. The problem is that they never bother seeking out decent arguments. They either just don't care, or they seek out arguments that support whatever their beliefs happen to be.

In other words, the problem is not that people are stupid. The problem is that people simply don't give a damn. If you don't fix that, I doubt raising IQ will be anywhere near as helpful as you may think.