[sboselli]

This is known and well understood. Bitcoin's implementation consumes lots of energy.

There have been however lots of developments in the blockchain space, especially as it refers to different proof systems and algorithms. The alt-coins in general, though mostly badly viewed due to the often poor and sleazy behaviours, are a playing ground for exactly this kind of problem.

I won't give specific names because I'm not an advocate for any one in particular, but there are several other coins and implementations that try to do away with the energy consumption and improve scaling. Some have even gotten to the point of eliminating mining and transaction fees altogether (yup, zero fees: transfer value anywhere in the world, instantly, and pay absolutely nothing for doing so).

A quick google search should point you in the right direction if it sounds interesting.

[lawn]

> Some have even gotten to the point of eliminating mining and transaction fees altogether

But it's not clear if they even work.

[kuprel]

iota