It is hard to predict the extent to which new mines and production facilities will come on stream because of higher prices and so increase the supply of metals, or how long it will take for that to happen.

ECONOMIST: The magnetism of metals

First, and most important, agencies are to utilize, to the extent permitted by law, the Statement of Energy Effects in their decisionmaking to improve the quality of agency actions affecting energy supply, distribution, or use.

WHITEHOUSE: Memoranda 01-27 (Guidance for Implementing E.O. 13211)