By 2092, “20-40% of mammalian species, 20-60% of reptiles, 40-80% of amphibia, and maybe 50% or more of insects will be extinct.” —Charles Stross

Created by gwern on 2012-01-14; known on 2092-01-01

• gwern estimated 30% on 2012-01-14
• gwern said “http://www.antipope.org/charlie/blog-static/2012/01/world-building-301-some-projec.html” on 2012-01-14
• spqr0a1 estimated 20% on 2012-01-17
• themusicgod1 estimated 53% on 2016-10-09
• pranomostro estimated 60% on 2018-12-19