Duplicate title to O'Neill, B.C. & Nakicenovic, N. ORCID: https://orcid.org/0000-0001-7176-4604 (2009). Learning from global emissions scenarios. IIASA Research Report (Reprint). IIASA, Laxenburg, Austria: RP-09-002. Reprinted from Environmental Research Letters, 3(2008):045014 (9pp). 10.1088/1748-9326/3/4/045014.