It's neither. The parent comment implied that Diamond's book was a leftist polemic on how the environment is important. I didn't think it was very leftist or ve

It's neither. The parent comment implied that Diamond's book was a leftist polemic on how the environment is important. I didn't think it was very leftist or very alarmist. That's all I meant. I was actually disappointed when Diamond mentioned neighboring nations as a reason for collapse...how utterly unsurprising and dull. He spent a lot of time talking about it, too.