Copper, especially, is a key ingredient in electric cars, wind turbines and batteries. Suppliers are not ready to meet the demand.
It's not just a mining issue. China leads in processing and purifying the minerals, but the United States lags in that industrial sector.
Green energy, internet connectivity and new school buildings are likely to be on the agenda for the White House and Democrats.
It's one of a number of growing examples of oil companies adjusting to changing energy needs.
Pittsburgh's plan to green up the city may be leaving low-income residents behind.
Can U.S. aluminum producers that use hydroelectricity distinguish their products from many Chinese producers, by touting their lower carbon footprint?
The plateau in emissions comes amid global economic growth.
Plus, these developments could be a boon for the green energy sector.