A Copenhagen Prognosis: Towards a safe climate future
Summary
The report argues that current greenhouse gas emission reduction targets are insufficient to prevent devastating climate impacts and self-amplifying warming. It asserts that to maintain a 75% chance of staying below 2°C, global emissions must decline rapidly after 2015 and reach essentially zero by midcentury, a goal it claims is technically feasible and economically affordable.
Key insights
- Current greenhouse gas (GHG) emission reduction targets are inconsistent with the political goal of protecting humanity from high risks of devastating climate impacts and self-amplifying global warming.
- To achieve a 75% probability of limiting warming to below 2°C, global GHG emissions must decrease extremely quickly after 2015 and reach nearly zero by the middle of the century.
- Analytical research at global and regional levels indicates that achieving deep emission cuts is technically feasible, economically affordable, and potentially profitable.
Cite the original document
- APA
- S., K., C.K, S., R., M., N., N., V., R., J., R., H.J, S., L., S., & R., W. (2010). A Copenhagen Prognosis: Towards a safe climate future. Stockholm Environment Institute. https://www.sei.org/publications/copenhagen-prognosis-towards-safe-climate-future/
- Chicago
- S., Kartha,, Siebert, C.K, Mathur, R., Nakicenovic, N., Ramanathan, V., Rockström, J., Schellnhuber, H.J, Srivastava, L., and Watt, R. A Copenhagen Prognosis: Towards a safe climate future. Stockholm Environment Institute, 2010. https://www.sei.org/publications/copenhagen-prognosis-towards-safe-climate-future/.
- Wikipedia
- {{cite report |last1=S. |first1=Kartha, |last2=C.K |first2=Siebert, |last3=R. |first3=Mathur, |last4=N. |first4=Nakicenovic, |last5=V. |first5=Ramanathan, |last6=J. |first6=Rockström, |last7=H.J |first7=Schellnhuber, |last8=L. |first8=Srivastava, |last9=R. |first9=Watt, |title=A Copenhagen Prognosis: Towards a safe climate future |publisher=Stockholm Environment Institute |date=21 January 2010 |url=https://www.sei.org/publications/copenhagen-prognosis-towards-safe-climate-future/ |access-date=17 August 2026 |via=Climate Insights Directory}}
- BibTeX
- @techreport{s2010copenhagen, author = {S., Kartha, and C.K, Siebert, and R., Mathur, and N., Nakicenovic, and V., Ramanathan, and J., Rockström, and H.J, Schellnhuber, and L., Srivastava, and R., Watt,}, title = {{A Copenhagen Prognosis: Towards a safe climate future}}, institution = {Stockholm Environment Institute}, year = {2010}, month = jan, url = {https://www.sei.org/publications/copenhagen-prognosis-towards-safe-climate-future/}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }
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