E.O.wilson writes that we need field biologists and protected reserves for about one half of the earth.

www.nytimes.com/2018/03/03/opinion/sunday/species-conservation-extinction.html?action=click&pgtype=Homepage&clickSource=story-heading&module=opinion-c-col-left-region&region=opinion-c-col-left-region&WT.nav=opinion-c-col-left-region