RE: Ask Me Anything - Marky Edition

I just saw an article about the energy problem of BTC the other day, emphasizing how much energy is "wasted" for transactions. It was more mainstream than the past similar pieces that have come out, I forget where but in the Times or a similar place.

What do you think of the energy issue? If it's a problem, what's the solution? Something BTC needs to tackle themselves? Or will a general worldwide movement to more green energy alternatives eventually make this a non-issue?

All your opinion, of course.