World food supplies in the 21st century

Greece, Japan and the United States – over the next few years many countries will be forced to declare national bankruptcy. The reason is the excessively high standard of living and the pension system, which is about to implode. Also, grain crop yields will no longer grow but drop in the near future. The world food supply situation is growing increasingly acute. Humanity needs to decide: Are we willing to accept painful changes in order to reach the 2-degree target? Before long, the subject of world population and overpopulation will not be missing from any serious discussion.