People are making a lot of good points about boats, but on the other had, I know that indigenous people, poor communities, and communities outside main developed areas use boats a lot just fine! I wonder what the difference is--I was thinking about this earlier. Maybe, in a swamp city (not just water, but kinda salty water, which is even worse), we want to go all in one quick biodegradables--stuff that only lasts for a year or two but then is easily composted. Natural materials, and then digging out the canoes or whatever is a community activity! This wouldn't work for emergency vehicles, because they wouldn't be motored and wouldn't go that fast, but it would prevent big waves from like disrupting houseboats like someone said.
One of the ways that maybe the traditional biomes shown in solarpunk might not translate as well to my city: they really seem to want infrastructure that lasts near-forever, and I literally don't think that's possible here. We're just too storm-battered, too humid, too wet. I'd definitely wanna see what more people think about short-use biodegrades. I know solarpunk hates single-use and waste, but I think maybe this doesn't count if the materials compost well?
I hate cars and car-centric urbanism, so maybe this is a way to make sure the use of boats doesn't just become the way cars are in New Orleans today--a slower pace of life, you have to paddle the boat. More like bikes than cars that way/
That makes sense for human waste, but I'm also wondering about the plants that I hope will be very present in solarpunk cities--in addition to pollinator, won't they need decomposers?