I am currently reading the book by a guy who works for Compassion in World Farming.
Disaster for the human race could certainly be round the corner. Example, we trawl the world's oceans for tiny fish (that might grow into more beneficial bigger fish or may support other creatures higher up the food chain) to feed to chickens for cheap, crap, International fast food outlets.
We need to take much better care of this planet folks. Meat free Monday, become a veggie, don't support the international fast food outlets, whatever you can, and persuade others to do the same. Else, it really will be Armageddon for either us or our grandchildren.