In reply to Duncan Campbell: The main thing is approach it open minded, being a climber don't be defensive of the sport, be balanced.
I just had a student do an essay on dolphin assisted therapy, something she thought she wanted to do. The science supporting it is poor and its very questionable (both in terms of positive impact and animal welfare), but to her credit so approached it open minded and ended up changing her views on it. I was a bit concerned about her writing about it as I thought she was too close to the subject to remain objective but she did it well.