Fun fact for hippies who love wind power but hate mining: "More than 8,000 pounds of copper go into a single large wind turbine"

Digging into the Promise of Copper: Minnesota DNR

More than 8,000 pounds of copper go into a single large wind turbine. If you own a hybrid car, you're driving around with about 9 pounds of nickel and 75 pounds of copper.
"The ironic thing is that none of this push to high-tech, green technology would be possible without one of the oldest industries known to man: mining. There's no other way to do it," said Bob McFarlin, Twin Metals vice president of public and government affairs.