For those who saw my introduction post, I'm just as big on mesh networks and sustainability as I am on green P2P trade networks. So here's the first of many posts with news on that front.
As many solarpunks probably know, bitcoin uses a crapton of energy and is not nearly as decentralized as it claims. To fix that, there is currently a fully decentralized cryptocurrency called NANO which is working to change the game. It is extremely energy efficient, and while it isn't fully clean just yet, they're working on it.
For comparison, Bitcoin consumes 950 KWH hours per transaction. NANO, meanwhile, consumes 0.000112 KWH hours per transaction.
The whole network can work off one wind turbine (although it doesn't just yet), and the NANO community is working to buy a small 14km^2 forest so that they have a negative carbon footprint rather than just a neutral one.
It's not perfect, sure, but it's great news in working towards a sustainable future.