It's conservative only in that it "conserves our ability to live on this planet". The measures described in the paper can only reasonably be implemented under a socialist government that has taken full control over economic development. Capital C Conservatism as a political ideology, however, seeks to conserve existing societal hierarchies, hierarchies such as capitalism which, ironically, is expressly running us towards civilisational collapse due to climate change.

Okay but what exactly do you want to know? There isn't one single gotcha study that would answer this. There's plenty of studies that show things like food wastage, or land wastage to feed the meat industry. There's articles on crops that waste excess water, like almonds, or technology that does the same, like AI. You then have to use critical thinking skills to put all that together and determine that maybe capitalism is the main issue and not overpopulation.