The IPCC Sixth Assessment Report highlights that climate change is widespread, rapid, and intensifying due to human activities, causing more frequent extreme weather events. Immediate and large-scale reductions in greenhouse gas emissions are necessary to limit global warming to 1.5°C, while further warming will exacerbate changes in climate and weather phenomena. The report is based on extensive scientific research and emphasizes that every additional ton of CO2 emissions contributes to global warming.

1. #ClimateReport #IPCC
SIXTH ASSESSMENT REPORT
Working Group I – The Physical Science Basis
9 August 2021
[Climate Change]

2. “Recent changes in the climate
are widespread, rapid, and
intensifying, and
unprecedented in thousands
of years.
[Credit:NASA]

3. “Unless there are immediate,
rapid, and large-scale
reductions in greenhouse gas
emissions, limiting warming to
1.5°C will be beyond reach.
[Credit: Peter John Maridable | Unsplash]

4. “It is indisputable that human
activities are causing climate
change, making extreme climate
events, including heat waves,
heavy rainfall, and droughts,
more frequent and severe.
[Credit: Yoda Adaman | Unsplash]

5. “Climate change is already
affecting every region on Earth,
in multiple ways.
The changes we experience will
increase with further warming.
[Credit: Hong Nguyen | Unsplash]

6. “
There’s no going back from
some changes in the climate
system…
[Credit: Jenn Caselle | UCSB]

7. “…However, some changes could
be slowed and others could be
stopped by limiting warming.
[Credit: Andy Mahoney | NSIDC]

8. “There’s no going back from
some changes in the climate
system. However, some
changes could be slowed and
others could be stopped by
limiting warming.
[Credit: Shari Gearheard | NSIDC]

9. “To limit global warming, strong,
rapid, and sustained reductions in
CO2, methane, and other
greenhouse gases are necessary.
This would not only reduce the
consequences of climate change
but also improve air quality.
[Credit: Evgeny Nelmin | Unsplash]

10. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
BY THE NUMBERS
Author Team
234 authors from 65 countries
28% women, 72% men
30% new to the IPCC
Review Process
14,000 scientific publications
assessed
78,000+ review comments
46 countries commented on Final
Government Distribution

11. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Interactive Atlas
Interactive Atlas interactive-atlas.ipcc.ch

12. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Interactive atlas
https://interactive-atlas.ipcc.ch/
#IPCCData #IPCCAtlas

13. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Human influence has warmed the climate at a rate that is
unprecedented in at least the last 2000 years
Figure SPM.1

14. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Human influence has warmed the climate at a rate that is
unprecedented in at least the last 2000 years
Figure SPM.1

15. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Human influence has warmed the climate at a rate that is
unprecedented in at least the last 2000 years
Figure SPM.1

16. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.2
Observed warming is driven by emissions from human activities,
with greenhouse gas warming partly masked by aerosol cooling

17. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.2
Observed warming is driven by emissions from human activities,
with greenhouse gas warming partly masked by aerosol cooling

18. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.2
Observed warming is driven by emissions from human activities,
with greenhouse gas warming partly masked by aerosol cooling

19. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.2
Observed warming is driven by emissions from human activities,
with greenhouse gas warming partly masked by aerosol cooling

20. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Climate change is already affecting every inhabited region
across the globe, with human influence contributing to many
observed changes in weather and climate extremes
Figure SPM.3

21. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.3
Climate change is already affecting every inhabited region
across the globe, with human influence contributing to many
observed changes in weather and climate extremes

22. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.3
Climate change is already affecting every inhabited region
across the globe, with human influence contributing to many
observed changes in weather and climate extremes

23. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.3
Climate change is already affecting every inhabited region
across the globe, with human influence contributing to many
observed changes in weather and climate extremes

24. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Future emissions cause future additional warming, with total
warming dominated by past and future CO2 emissions
Figure SPM.4

25. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Future emissions cause future additional warming, with total
warming dominated by past and future CO2 emissions
Figure SPM.4

26. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Future emissions cause future additional warming, with total
warming dominated by past and future CO2 emissions
Figure SPM.4

27. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Future emissions cause future additional warming, with total
warming dominated by past and future CO2 emissions
Figure SPM.4

28. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Future emissions cause future additional warming, with total
warming dominated by past and future CO2 emissions
Figure SPM.4

29. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Future emissions cause future additional warming, with total
warming dominated by past and future CO2 emissions
Figure SPM.4

30. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Future emissions cause future additional warming, with total
warming dominated by past and future CO2 emissions
Figure SPM.4

31. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
With every increment of global warming, changes get larger in
regional mean temperature, precipitation and soil moisture
Figure SPM.5

32. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
With every increment of global warming, changes get larger in
regional mean temperature, precipitation and soil moisture
Figure SPM.5

33. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
With every increment of global warming, changes get larger in
regional mean temperature, precipitation and soil moisture
Figure SPM.5

34. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
With every increment of global warming, changes get larger in
regional mean temperature, precipitation and soil moisture
Figure SPM.5

35. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Projected changes in extremes are larger in frequency and
intensity with every additional increment of global warming
Figure SPM.6

36. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.6
Projected changes in extremes are larger in frequency and
intensity with every additional increment of global warming

37. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.6
Projected changes in extremes are larger in frequency and
intensity with every additional increment of global warming

38. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.6
Projected changes in extremes are larger in frequency and
intensity with every additional increment of global warming

39. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.7
The proportion of CO2 emissions taken up by land and ocean
carbon sinks is smaller in scenarios with higher cumulative CO2
emissions

40. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.8
Human activities affect all the major climate system components,
with some responding over decades and others over centuries

41. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.8
Human activities affect all the major climate system components,
with some responding over decades and others over centuries

42. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.8
Human activities affect all the major climate system components,
with some responding over decades and others over centuries

43. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.8
Human activities affect all the major climate system components,
with some responding over decades and others over centuries

44. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Human activities affect all the major
climate system components, with
some responding over decades and
others over centuries
Figure SPM.8

45. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.9
Multiple climatic impact-drivers are projected to change in all
regions of the world

46. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Figure SPM.9
Multiple climatic impact-drivers are projected to change in all
regions of the world

47. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Every tonne of CO2 emissions adds to global warming Figure SPM.10

48. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Every tonne of CO2 emissions adds to global warming Figure SPM.10

49. SIXTH ASSESSMENT REPORT
WorkingGroupI –ThePhysical ScienceBasis
Every tonne of CO2 emissions adds to global warming Figure SPM.10

50. #ClimateReport #IPCC
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Thank you.
9 August 2021
IPCC: www.ipcc.ch
IPCC Secretariat: ipcc-sec@wmo.int
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