Climate change solved: steal energy from adjacent universes, pipe our carbon waste into theirs.
There’s a fun short story in qntm’s “Valuable Humans In Transit” about a scenario like this.
Remind me of The Expanse, where the ring space is syphoning energy from some other universe to keep the gates open.
It’s “out of the environment”.
There’s a fun short story in qntm’s “Valuable Humans In Transit” about a scenario like this.