Could you say a bit more about how this works in practice? I'm asking because of vague memories that much of the logging in the Amazon is done illegally anyway. So presumably just saying "we buy up land and then it's ours and nobody will log it because it's forbidden" would not be effective.
Am I misremembering things and this is not really a problem? Or do you have some effective way to ensure that land not meant to be logged is really left alone?