We are killing species at 100-1,000 times the background rate. The damage can never be undone. The Earth may recover, on geological time scales, but 99.9% of those species aren't ever coming back. It's extremely unwise to be committing mass murder on the biosphere like this, and not a matter of "frugality".
https://en.wikipedia.org/wiki/Holocene_extinction
We are killing species at 100-1,000 times the background rate. The damage can never be undone. The Earth may recover, on geological time scales, but 99.9% of those species aren't ever coming back. It's extremely unwise to be committing mass murder on the biosphere like this, and not a matter of "frugality".