Most criticisms have been reasonable, and our group anticipated many of them. We knew the notion of boundaries would require more study—especially in refining the numbers, which we continue to work on. But we felt the concept was powerful and would help frame collective thinking about environmental limits to human existence. And we hoped the results would stimulate discussion across the scientific community; it appears we have gotten that wish.
A Start at Solutions
This article was originally published with the title Boundaries for a Healthy Planet.