Is Massey energy selling out to cliffs natural rescources?

chandler is the best kid in the world and he is beast

Sun, fossil fuel and tidal currents for example

Yes indeed it can be. Any source of energy is potentially dangerous to some degree or another, but it can depend upon how extreme or absurd a situation you might want to imagine. Ultra-violet light...

by cutting down land and trees to dig holes in earth to reach the geothermal energy

I don't know all of them and that's what I want to know also, but here's 3 that I know. There's Coal, Oil (Gasoline), and Natural Gas.