How so? The article I read is mostly a list of interesting factoids about resource and commodity consumption. It doesn't attack environmentalists, if anything it starts with a jibe at journalists, but only insomuch as it notes "good news is no news".

In particular, what parts were ranty? I didn't see anything that would rise to the level of a rant. It's remarkably good natured given the invectives routinely dished out by those who would disagree.