Technology will not solve our problems. The fundamental problem is endless consumption. Even if we had 100% pollution-free electricity we'd just end up consuming so much that the goddamn heat would be the problem. Stop buying stuff, turn off the goddamn lights, walk and ride your bike or at least ride the bus.
Isn't it also thought that harnessing tidal power would basically mess up, you know, the surf? The wave-breaking part of a beach is a pretty specialized ecosystem, no? I have a dim memory from long ago about something like that, but maybe I'm confusing it with river hydro doing that to rivers. Tho I suppose the two are quite compatible.
You'd think I'd have watched the video but I'll have my people watch it for me and write up a report for me to forget.
Nah it's because if you take energy out of the tides, it slows down the tides and produces a drag on the moon; and eventually the moon slows down enough to drop out of orbit and crash into the earth.