The document summarizes key findings from the IPCC Special Report on Global Warming of 1.5°C. It notes that global temperatures have already increased by 1°C since pre-industrial times and discusses the impacts of limiting warming to 1.5°C versus 2°C, including less extreme weather, lower sea level rise, and fewer people exposed to climate risks. To limit warming to 1.5°C, global CO2 emissions would need to be cut by about 45% by 2030 and reach net zero by around 2050, requiring unprecedented changes across sectors. The report also discusses options for adaptation and overshooting temperature targets temporarily.

1. Titelmasterformat bearbeitenThe Future of Climate Change Adaptation:
Reflections on the IPCC SR1.5°
Daniela Jacob

2. We are living in a changing climate !
• 2015 to 2019 is the warmest 5 year period on record
• extreme weather events happen in many regions of the World
• heat waves, droughts and heavy precipitation
increased in some regions of the World

3. Where are we?
Since pre-industrial times, human activities have caused
approximately 1.0°C of global warming.
• Already seeing consequences for people, nature and
livelihoods
• At current rate, would reach 1.5°C between 2030
and 2052
• Past emissions alone do not commit the world to
1.5°C
Ashley Cooper / Aurora Photos
5

4. § Less extreme weather
§ By 2100, global mean sea level rise will be around 10 cm lower
§ 10 million fewer people exposed to risk of rising seas
§ Lower impacts on biodiversity and species.
§ Smaller reductions in yields of maize, rice, wheat
§ Global population exposed to increased water shortages is up to
50% less
§ Up to several hundred million fewer people exposed to climate-
related risk and susceptible to poverty by 2050
Impacts of global warming:
+1.5°C compared to +2°C

5. SPM2|
How the level of global warming affects impacts and/or risks
associated with the Reasons for Concern (RFCs) and selected
natural, managed and human systems
Confidence level : M, medium; H, high; VH; very high

6. IPCC Special Report on Global Warming of 1.5ºC – Executive Summary Chapter 3
6© Climate Service Center Germany (GERICS)
Climate change risks for natural and human systems
Terrestrial and Wetland Ecosystems
Land Use, Food Security and Food Production Systems
Human Health, Well-Being, Cities, and Poverty
Key Economic Sectors and Services

7. How do we get there?
• To limit warming to 1.5°C, CO2 emissions fall by
about 45% by 2030 (from 2010 levels)
• To limit warming to 1.5°C, CO2 emissions would need
to reach ‘net zero’ around 2050
• Reducing non-CO2 emissions would have direct and
immediate health benefits
Compared to 20% for 2°C
Compared to around 2075 for 2°C
9
Gerhard Zwerger-Schoner / Aurora Photos

8. How do we get there?
• Limiting warming to 1.5°C would require changes on
an unprecedented scale
Deep emissions cuts in all sectors
A range of technologies
Behavioural changes
Increase investment in
low carbon options
10
Peter Essick / Aurora Photos
Systems transitions

9. Overshoot scenarios:
options and consequences
Hoegh-Guldberg, Jacob, Taylor et al., Science 2019 wikipedia_ccBY2.0dpa / Julian Stratenschulte

10. How do we get there?
• Close links to United Nations Sustainable
Development Goals (SDGs)
• Mix of measures to adapt to climate change and
reduce emissions can have benefits for SDGs
12
Ashley Cooper/ Aurora Photos
• Ethical and fair transitions

11. Research and Services
support transformation
1. Preparing to
adapt
2. Assessing
climate risks and
vulnerabilities
3. Identify
adaptation
options
4. Assess
adaptation
options
5. Implement
6. Monitor and
evaluate

12. 12
Grid Representation of Local Temperature (July 2, 1995)
~150 km ~12.5 km ~3 km

13. 13
Capacity
Building
System Dynamics
GERICS: science for solutions
Dimensions Policies/tools
Global Global goal on adaptation
Regional /
Continental
Regional Strategies
National
National Adaptation Plans -
Strategies
National Communications
Subnational
Cities / Sectoral Adaptation
Plans
Local
Adaptation implementation /
undertaking / efforts

14. 2
ipcc.ch/report/sr15 :
Summary for Policy Makers
10 Frequently Asked Questions
5 Chapters
Glossary