I think about this a lot when we’re talking about animal, bird, and insect populations, because all those massive declines we’re hearing about are measured from 1970 onwards. By that point industrial civilization had been chugging away for a full century, and ecosystems were already severely degraded. Then I think about how settlers clear-cut the Eastern US with just hand-powered axes and saws, and that was a hundred years before that.
In most areas we’d have to go back over 10 generations to encounter a truly healthy ecosystem. Shifting baseline is absolutely a real thing.
I think about this a lot when we’re talking about animal, bird, and insect populations, because all those massive declines we’re hearing about are measured from 1970 onwards. By that point industrial civilization had been chugging away for a full century, and ecosystems were already severely degraded. Then I think about how settlers clear-cut the Eastern US with just hand-powered axes and saws, and that was a hundred years before that.
In most areas we’d have to go back over 10 generations to encounter a truly healthy ecosystem. Shifting baseline is absolutely a real thing.