\authors{
  Z. Nicholls\affil{1,2,3},
    M. Meinshausen\affil{2,3},
    J. Lewis\affil{1,2,3},
    C. J. Smith\affil{1,4},
    P. M. Forster\affil{4},
    J. Fuglestvedt\affil{5},
    J. Rogelj\affil{1,6,7},
    J. S. Kikstra\affil{1,6,7},
    K. Riahi\affil{1},
    E. Byers\affil{1}
}

\affiliation{1}{International Institute for Applied System Analysis, IIASA, Laxenburg, Austria}
\affiliation{2}{Climate \& Energy College, School of Geography, Earth and Atmospheric Sciences, The University of Melbourne, Parkville, Victoria, Australia}
\affiliation{3}{Climate Resource, Northcote, Victoria, Australia}
\affiliation{4}{Priestley International Centre for Climate, University of Leeds, Leeds, United Kingdom}
\affiliation{5}{CICERO, Oslo, Norway}
\affiliation{6}{Centre for Environmental Policy, Imperial College London, London, United Kingdom}
\affiliation{7}{Grantham Institute for Climate Change and the Environment, Imperial College London, United Kingdom}
%(repeat as many times as is necessary)
