• Medientyp: E-Artikel
  • Titel: Scenarios towards limiting global mean temperature increase below 1.5 °C
  • Beteiligte: Rogelj, J. [Verfasser:in]; Popp, A. [Verfasser:in]; Calvin, K. [Verfasser:in]; Luderer, G. [Verfasser:in]; Emmerling, J. [Verfasser:in]; Gernaat, D. [Verfasser:in]; Fujimori, S. [Verfasser:in]; Strefler, J. [Verfasser:in]; Hasegawa, T. [Verfasser:in]; Marangoni, G. [Verfasser:in]; Krey, V. [Verfasser:in]; Kriegler, E. [Verfasser:in]; Riahi, K. [Verfasser:in]; Vuuren, D. [Verfasser:in]; Doelman, J. [Verfasser:in]; Drouet, L. [Verfasser:in]; Edmonds, J. [Verfasser:in]; Fricko, O. [Verfasser:in]; Harmsen, M. [Verfasser:in]; Havlík, P. [Verfasser:in]; Humpenöder, F. [Verfasser:in]; Stehfest, E. [Verfasser:in]; Tavoni, M. [Verfasser:in]
  • Erschienen: Publication Database PIK (Potsdam Institute for Climate Impact Research), 2018
  • Erschienen in: Nature Climate Change
  • Sprache: Nicht zu entscheiden
  • DOI: https://doi.org/10.1038/s41558-018-0091-3
  • Entstehung:
  • Anmerkungen: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Beschreibung: The 2015 Paris Agreement calls for countries to pursue efforts to limit global-mean temperature rise to 1.5 °C. The transition pathways that can meet such a target have not, however, been extensively explored. Here we describe scenarios that limit end-of-century radiative forcing to 1.9 W m−2, and consequently restrict median warming in the year 2100 to below 1.5 °C. We use six integrated assessment models and a simple climate model, under different socio-economic, technological and resource assumptions from five Shared Socio-economic Pathways (SSPs). Some, but not all, SSPs are amenable to pathways to 1.5 °C. Successful 1.9 W m−2 scenarios are characterized by a rapid shift away from traditional fossil-fuel use towards large-scale low-carbon energy supplies, reduced energy use, and carbon-dioxide removal. However, 1.9 W m−2 scenarios could not be achieved in several models under SSPs with strong inequalities, high baseline fossil-fuel use, or scattered short-term climate policy. Further research can help policy-makers to understand the real-world implications of these scenarios.