Could you explain more what you mean about our growth based economic model not being sustainable? This is a topic that I'm fairly new to and the only substantial thing I've read about it is Tyler Cowen's "Stubborn Attachments" which presented what I found to be a very compelling argument that long term economic growth is very good and is in fact the only sustainable way forward.

I've been hoping to read some counter arguments to that idea to round out my exposure to the topic.