About the global initiatives of acquiring clean energy technology from Extra-terrestrial Life:
The key question is NOT how to acquire clean energy technology or why we should use clean energy. The KEY QUESTION is what leads us in need of such amount of energy of which traditional energy production (small amount of energy output) had no longer suitable "for your current social needs and lifestyle". Think about it people. Don't get it wrong again. (-.-)
Give you a hint:
You really think that your family camp fire can pollute the Earth? Or the mass production of automobiles, electrical devices, manufacturing machineries, and military weapons pollute the Earth? You can't have clean energy to produce military weapons because this is extremely stupid and contradictory of which you can never manufacture the weapons without activating them forever OR, activating them without polluting the Earth!
Change your world first, change your people's mind-set first, change your people's perception first, then only figure out whether clean energy is a CHALLENGE, or a NEED. (-.-)