This document discusses the synergies and tradeoffs between climate change adaptation and mitigation. It states that mitigation is critical to ensuring a wide range of effective adaptation options by limiting global warming increase. With increased warming, both human and natural systems will face greater losses and damages and exceed their limits of adaptation. The document also notes that response measures to climate change, like deployment of bioenergy crops, can impact food systems, ecosystems and water scarcity if used over large amounts of land. Dedicated bioenergy crops consistent with mitigation scenarios could require an area half the size of current global cropland.

1. Adaptation-Mitigation Synergies and Tradeoffs

2. Sixth Assessment Report
Synthesis Report

3. SIXTH ASSESSMENT REPORT
Credit
SYR Figure SPM.7
There are multiple
opportunities for scaling
up
climate action

4. SIXTH ASSESSMENT REPORT
IPCC AR6 SYR Figure SPM.2c

5. SIXTH ASSESSMENT REPORT
IPCC AR6 SYR Figure SPM.2c

6. Mitigation is critical to ensuring a wide range of adaptation options are
effective
B.4 Adaptation options that are feasible and effective today will
become constrained and less effective with increasing global
warming. With increasing global warming, losses and damages will
increase and additional human and natural systems will reach
adaptation limits. Maladaptation can be avoided by flexible, multi-
sectoral, inclusive, long-term planning and implementation of
adaptation actions, with co-benefits to many sectors and systems.
(high confidence)

7. •Risk from response option  amount of land used for dedicated
bioenergy
•Dedicated 2nd generation bioenergy monocultures consistent with
current mitigation scenarios (Fig. SPM4)
•Combined risk: food systems, terrestrial ecosystems and water
scarcity
Yet response measures also have impacts….

8. Range of bioenergy
deployment in 2050 in
mitigation scenarios
(depends on mitigation
stringency and SSPs)
Equivalent to roughly
half of current
cropland area (Fig.
SPM1)

9. Speakers:
Reflections on synergies, trade-offs and areas for further research:
Debbie Ley, IPCC Lead Author Working Group II
Stephanie Roe, IPCC Lead Author Working Group III
Aditi Mukherji, IPCC Lead Author Working Group II and SYR
Elisabeth Gilmore, IPCC Lead Author Working Group II
Katherine Calvin, Co-Chair Working Group III