The document summarizes the key findings on climate change and health from the IPCC Sixth Assessment Report (AR6). It discusses how health is addressed in the working group reports. The WGI report finds that climate change is increasing the frequency and intensity of extreme weather events like heatwaves and heavy precipitation that negatively impact health. The WGII report assesses the direct risks from climate hazards as well as indirect impacts on mental health, workplace impacts, and the WHO framework. The WGIII report finds that mitigation actions like reducing air pollution and shifting diets can provide public health co-benefits, but near-term air quality improvements may not be enough to meet WHO guidelines in some polluted regions.

1. Jan Fuglestvedt
Vice-chair IPCC Working Group III
CLIMATE CHANGE AND HEALTH:
MAIN FINDINGS FROM IPCC SIXTH ASSESSMENT REPORT

2. The 6th Assessment Cycle (AR6) October 2015 – July 2023

3. 234 authors, 65 countries
14,000+ scientific papers
78,000+ review comments
270 authors, 67 countries
34,000+ scientific papers
62,000+ review comments
278 authors, 65 countries
18,000+ scientific papers
59,000+ review comments

7. • Climate Impact Drivers
(CIDs)
Chapter 6:
• Short-lived climate forcers
• Air quality
Chapter 7: Health
+ regional chapters
Mitigation:
• Reduced health impacts of climate change
• Co-benefits (Out-/indoor air quality and health)
• Food / diets / nutrition
• Relation to SDGs
Where is HEALTH addressed in AR6 working group reports?

8. Haines A, Ebi K. The imperative for
climate action to protect health. New
England Journal of Medicine 2019;
380(3): 263-273

9. Welcome Ramon Pichs-Madruga, IPCC Vice Chair
Introduction Jan Fuglestvedt, IPCC WGIII Vice Chair
IPCC WGI perspective. Aida Diongue-Niang, IPCC WGI Vice Chair, LA IPCC AR6 WGI Ch1 + SyR CWT
IPCC WGII perspective. Kris Ebi, LA IPCC AR6 WGII Ch7
IPCC WGIII perspective. Kate Calvin, Co-chair IPCC WGIII, LA IPCC AR6 WGIII Ch3 + SyR CWT
IPBES perspective: David Obura, Chair of IPBES, previously IPBES Co-chair
Outlook and knowledge gaps
Moderator: Sherilee Harper, WGI Vice chair. LA in AR6 WGII.
Short intro by the moderator
 Open discussion with audience (incl the panel of speakers)
Closing remark Ramon Pichs-Madruga IPCC Vice chair
End: 10:30 am.

11. Sixth Assessment Report
Working Group III - Mitigation of Climate Change
Climate Change and Health:
WGI Perspective
Aïda Diongue-Niang
Vice-Chair, Working Group I (WGI), IPCC AR7

12. SIXTH ASSESSMENT REPORT
IPCC AR6 SYR Figure SPM.1a

13. SIXTH ASSESSMENT REPORT
IPCC AR6 SYR Figure SPM.1b

16. SIXTH ASSESSMENT REPORT
Working Group I – The Physical Science Basis
Figure 12.4

17. SIXTH ASSESSMENT REPORT
Working Group I – The Physical Science Basis
Relevant to Heath, IPCC WG I Chapter 10 has assessed the urban heat island

18. SIXTH ASSESSMENT REPORT
Working Group I – The Physical Science Basis
Figure
SPM.6
Extremes such as heatwaves, heavy precipitation and droughts are projected to be
larger in frequency and intensity with every additional increment of global warming

20. SIXTH ASSESSMENT REPORT
Working Group I – The Physical Science Basis
In the low and very low GHG emissions (scenarios SSP-1.9 and SSP1-2.6) air pollution
control policies, reduction in CH4 and other ozone precursor lead to rapid
improvements in air quality and to strong reductions in global surface ozone and
particule matter from 2040.
Box TS.7, Figure 1

21. SIXTH ASSESSMENT REPORT
Working Group I – The Physical Science Basis
From WGI Ch6
From the Summary for policymakers:
Reductions in GHG emissions also lead to air
quality improvements. However, in the near
term,even in scenarios with strong reduction of
GHGs, as in the low and very low GHG
emissions scenarios , these improvements are
not sufficient in many polluted regions to
achieve air quality guidelines specified by the
World Health Organization (high confidence).

23. WGII Perspective on Main Findings on Climate
Change and Health from the ICC AR6
Kristie L. Ebi, Ph.D., MPH

30. Mulchandani et al. 2020
2013-2014 UK winter floods
Anxiety PTSD
In year 3, prevalence of probable
PTSD in people who were flooded
with persistent damage was 30%

31. Direct and
cascading
workplace
impacts of the
2021 Heat
Dome,
Canadian
media
Tetzlaff et al. 2023

33. WHO 2023
WHO Operational Framework

37. Sixth Assessment Report
Working Group III - Mitigation of Climate Change
Climate Change and Health:
WGIII Perspective
Kate Calvin
Co-Chair, Working Group III (WGIII), IPCC AR7

38. Sixth Assessment Report
Working Group III - Mitigation of Climate Change
WGIII Figure 3.40

39. Sixth Assessment Report
Working Group III - Mitigation of Climate Change
WGIII Figure SPM.7

40. Sixth Assessment Report
Working Group III - Mitigation of Climate Change
WGIII Figure SPM.7

41. Sixth Assessment Report
Working Group III - Mitigation of Climate Change
WGIII Figure SPM.8

42. Sixth Assessment Report
Working Group III - Mitigation of Climate Change
WGIII Figure SPM.8
Many mitigation actions would
have benefits for health through
lower air pollution, active mobility
(e.g., walking, cycling), and shifts
to sustainable healthy diets (high
confidence). {IPCC SYR SPM
C.2.3}

43. For more information: IPCC Secretariat: ipcc-sec@wmo.int IPCC Press Office: ipcc-media@wmo.int Visit ipcc.ch
@IPCC_CH
#IPCCReport
@IPCC @IPCC
linkedin.com/
company/ipcc
Thank you!