Biofuels and ethics

Apparently, there's no precise answer when it comes to the ethics of biofuels. At least in my case, before studying this topic, I still had the idea that biofuels were going to be the "salvation" of the world. But now I know that there are many studies against this idea. 


What's the problem then? They are basically two: first, there's no complete and wide investigation, that covers all the topic's implicances and second, most of the "studies" that exist are completely biased by the own investigator's ideas.

It used to be the way of saving the world's unequal distribution of food, but it looks like it has just opened a new business. Now, instead of fighting for the right of the people to live and eat, many of them are using agricultural lands (instead of other lands they could be using), just to produce biofuels, that are quite more profitable than food. This is completely unacceptable and should be regulated. 

But there's also the other side of the coin. Apparently this "studies" that state horrorful things about the biofuels, like that they are contaminating even more that fossil fuels, are not much reliable. And, according to other investigations, biofuels are actually quite good to the environment, and do serve to their first purpose: to stop pollution and carry on with the globalization.


As I said in the beginning, apparently there isn't one truth in this topic. I hope that someone makes a complete investigation, and massifies this to the public, or otherwise it wouldn't matter all the results he concluded. So now, the question goes for you: what do you think about biofuels? Are they actually making any bad to the environment, or is that just a political attack?