Science Policy Interface: Key Messages from WGI
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1) The document discusses key messages from the IPCC Working Group I report regarding human-caused climate change. 2) It notes that warming of the climate system is unequivocal and human influence is clear based on observational evidence. 3) Continued greenhouse gas emissions will cause further warming and changes to the climate system, amplifying existing risks from climate change impacts.
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Science Policy Interface: Key Messages from WGI
- 1. © Yann Arthus-Bertrand / Altitude Thomas Stocker & Qin Dahe Co-Chairs IPCC Working Group I Switzerland and China Science-Policy Interface Seminar: Key Messages from WGI
- 3. Human influence on the climate system is clear. Continued GHG emissions will cause further warming and amplify existing risks. Changes in climate have caused impacts in natural and human systems. Multiple pathways exist to likely limit warming to below 2°C.
- 4. Warming of the climate system is unequivocal IPCC2013,Fig.SPM.1b Temperature Difference 1901 to 2012 based on trend (°C)
- 5. Warming of the climate system is unequivocal IPCC2013,Fig.SPM.2 Precipitation Difference 1951 to 2010 based on trend (mm/yr per decade)
- 6. Warming of the climate system is unequivocal IPCC2013,Fig.SPM.2 Precipitation Difference 1951 to 2010 based on trend (mm/yr per decade)
- 7. IPCC2013,Fig.SPM.7a Global mean surface temperature change from 1986-2005 Continued emissions will cause further warming and changes in all components of the climate system.
- 8. RCP 2.6 (annual) RCP 8.5 (annual) IPCC 2013: Atlas of Global and Regional Climate Projections Changes in East Africa (2081-2100)
- 11. IPCC2012,Fig.SPM.4A A 1-in-20 year hottest day is likely to become a 1-in-2 year event by the end of the 21st century 10 more frequent
- 12. 2°C world
- 13. 4.5°C world2°C world Today we have a choice.
- 14. © Yann Arthus-Bertrand / Altitude www.climatechange2013.org www.ipcc.ch Further Information