Thought of the day: If everyone in the world becomes a Bitcoin miner (BCH), it could adequately replace the need for all central heating systems, if designed effectively - making huge savings & lower greenhouse gases.
(The first of its kind, paid to heat your own house by mining rewards & If possible, the mining rigs could be re-designed in such a way to also heat house water supply!).
Times when you don't need to heat your house, you can choose to trade watts consumed to people that do need elsewhere in the world, & choice to give some away voluntary too, viceversa.
(A global energy trading economy in BCH currency & its network!. The mining rigs can be powered independently on all biofuels available, and suitable renewable energy for that area!).