George Monbiot does not mention the other big existential threat facing our species. The huge amount of antibiotics fed to animals means that the consumers of meat are becoming immune to them. This is a nightmare scenario and diseases that were brought under control over the last 100 years are reappearing. People are already dying as antibiotics are no longer working. Because George consumes milk, fish and meat albeit occasionally he cannot be counted a vegetarian or a vegan. Perhaps he needs to look at the compassionate factor of not eating animals.