The Sahara desert will be smaller by square kilometers in 2112 than 2012

Created by gwern on 2012-01-24; known on 2112-01-01

• gwern estimated 30% on 2012-01-24
• gwern said “currently >9,400,000 sqkm. inspired by #16 in http://www.bbc.co.uk/news/magazine-16536598” on 2012-01-24
• themusicgod1 estimated 6% on 2016-10-09
• pranomostro estimated 25% on 2018-12-15
• Baeboo estimated 49% on 2018-12-15