The following is a pretty good description of how markets work, and why repeated calls by central-planning types to “change our economic system because we’re using up all the stuff” have always turned out to be wrong.
Natural resource extraction has a cost. Investors/entrepreneurs invest in natural resource extraction to make a profit. As the cost rises, other investors/entrepreneurs invest in alternative technologies to compete and take market share (aka profit) from the previous investors/entrepreneurs. The use of one material then converts to the use of another material. The competitive market and private ownership has been the greatest force for good in the history of humanity. Let’s continue to let the good times roll.