One of the more serious arguments against these kinds of dire food shortage warnings is the distribution factor. The document in question
http://www.siwi.org/...k_report_31.pdf acknowledges this. They report that 1 billion people on the planet are underfed, and 2 billion are overfed. Obviously there is an imbalance. But trying to rectify it would be just as hard as convincing people to become vegetarians.
The food distribution argment though does not address the coming water shortage. And if you think
food rich governments cannot be convinced to transfer vaste quantities of their food supply to
food poor countries, wait til you tell them they have to transfer/divert huge amounts of their water too.
The 800 pound gorilla in the room, that not many people want to talk about, is the exponential human population growth.
For those who pooh pooh these warnings from scientists about running into the wall of limited and finite resources; what do you believe to be the optimum human carrying capacity of the earth? Assuming: i) everyone lived and consumed like North Americans, and ii) everyone lived and consumed like East Indians?
p.s. my vegan example, Carl Lewis, still stands even if he did take some over the counter cold medication. Even if he didn't win 9 Olympic gold medals, I don't think you can say his vegan diet harmed his health in any way.
Edited by redhen, 27 August 2012 - 11:32 PM.