The dam you get for $1m is also a temporary, or very small dam. Real construction costs for a permanent structure at scale exceed this by one or two orders of magnitude. If the dam required was a $1m dam, then getting beavers to make it is an entirely sensible decision or outcome, even if not decided.
That's another thing: nobody got the beavers to make this dam, they just happened to do it coincidentally. You might as well say that waiting for a landslide to block the river is better than hiring human engineers and builders. In most cases, a landslide is not going to come along at just the right spot, but if does, you can say "see? we saved money"
Yes, but also .. kinda-no. Rewilding is a thing. You get to put beavers to work inside a specified area. Exactly where, thats on them. Which is a bit of a bummer for planning and risk assessment but you go for net-upside overall, and the specific farmer rage bait outcome settles with some of the $1m you saved.
I have concerns with the economics behind rewilding, and green upside monetising. A lot of carbon credits monetize things which were going to happen anyway, and don't reflect real re-wilding or carbon sink activity. Like, if you had been clearing land for decades, and left it alone, you get to claim amazing carbon sink benefits from the wood which grows, even on the land you never intended trying to make productive. Somehow, that feels wrong.
Beavers are also cost avoidance on other people than the land holder. Overground water flows generally don't stop at the farm boundary. Somebody 100km away doesn't get flooded, and its a benefit, but to them, or their insurer, or their town council, or .. who exactly isn't clear. "I didn't have to remediate all this flood damage" has undefined, but treated as uncountable/low dollar value where 'I did spend $200m remediating' has very clear value. (I want to say negative but there's bad economics coming back in. A giant flood potlach is jobs, and spend, and boosts the rural economy. Albiet at the expense of somewhere else not getting that spend. Money is wierd. we need more wars! they're good for the economy.. kinda)
Re-wilding beavers is a thing, but that's not what the article says happened here. This was some native beavers who came along and happened to build dams in the right spots.
yes. good point. shouldn't argue for helping nature from nature helping itself. I mean I do think we should help nature but we can't claim this was because we helped.
