Living the good life has often meant finding ways to allow for growth and construction while ostensibly protecting the natural environment on which we depend. Want to build a housing development, but there’s a wetland in the way? Mitigate the harm by building a new one somewhere else. Want to dam a river, but there’s a salmon run in the way? Build fish passage around the dam. If that’s not feasible, build a hatchery instead. … Unfortunately, these creative approaches often fail. Constructed wetlands fail to reproduce the essential hydrologic or biodiversity or other functions of natural wetlands. Fish passage fails to get enough fish up and down stream to keep populations viable. Hatcheries can’t sustain fisheries over the long term in the same way that habitat can.