/11423/1.hassmallThumbnailVersion/Mitigation%20choices%20impact%20carbon%20budget%20size.pdf;/11423/1/Mitigation%20choices%20impact%20carbon%20budget%20size.pdf|/11423/7.hassmallThumbnailVersion/Rogelj_2016_Environ._Res._Lett._11_129503.pdf;/11423/7/Rogelj_2016_Environ._Res._Lett._11_129503.pdf