In Wyoming, Going Deep To Draw Energy From Coal The United States has lots of coal, ... "This technology will open up that 95 percent that surface mining can't get to," says Peter Wold, ...

The mine has drawn closer ever since. It now stands about 2.5 miles away, close enough to taste the dust blown off its ever-growing piles of overburden, the earth excavated in pursuit of coal.

Researchers argue that 300GW of solar energy could be produced at Mpumalanga’s old mines and those closing in the next decade ...