when will global peak production occur?

Global peak production of a particular resource could occur at any time but is often difficult to predict. In general, peak production occurs as production costs increase and the effort-to-yield ratio reaches its maximum point. This happens when it is no longer profitable to produce the resource and the production of the resource begins to decline. It is also possible that peak production could be limited by the availability of the resource; when physical reserves are 'depleted', production will be limited.