Thread by @schipper_lisa

1. I am a Co-ordinating lead author of the #IPCC #WGII Chapter 18 on Climate resilient development (CRD) pathways, along with @AromarRevi and @bl_preston. CRD a foundational concept for the WGII report. But what is it? #ClimateReport #IPCC

2. The key message of #IPCC #WGII #AR6 Ch 18 is: Every development choice now moves us toward or away from a climate resilient future. This means that more than before, we see the connection of #SustainableDevelopment and climate change.

3. #ClimateResilientDevelopment (#CRD) is defined as the strategic combination of adaptation to climate change with mitigation of greenhouse gas emissions to support sustainable development. #ClimateReport #IPCC #WGII.

4. #CRD Pathways strengthen sustainable development & efforts to eradicate poverty & reduce inequalities while promoting fair and cross-scalar adaptation in a changing climate. They raise the ethics, equity, and feasibility aspects of the deep societal transformation needed.

5. With the limits to adaptation shown in the #WGII #AR6 report, and the continued rise in global warming now passing 1.1C shown in #WGI #AR6 report, adaptation opportunities are constrained by every increment in warming. Thus, #CRD brings together adaptation and mitigation.

6. What did we learn about #CRD in our assessment? That past choices (development, emissions) have already constrained our opportunities for #CRD now and in the future. But that options still remain (although these are unequally distributed around the world).

7. Problematically, our assessment showed that current development pathways combined with the observed impacts of climate change, are leading away from, rather than toward, sustainable development, thus not advancing #CRD.

8. We have high confidence that severe risks to natural and human systems are already observed in some places, & could occur in many more systems, worldwide before mid-century, by end-century at all scales, from the local to the global, and at all latitudes and altitudes.

9. Related to this it is unquestionable that social and economic inequities linked to gender, poverty, race/ethnicity, religion, age, or geographic location compound vulnerability & have created & could further exacerbate injustices & constrain the implementation of #CRD for all.

10. Opportunities for #CRD vary by location because of the differentiated conditions. Over 3.3 billion people live in regions that are very high and highly vulnerable to climate change (see Ch 8), while 2 billion people live in regions with low and very low vulnerability.

11. There are multiple possible pathways for all levels of society to pursue #CRD. This involves confronting complex synergies and trade-offs between development pathways, and the options, contested values, and interests that underpin climate mitigation and adaptation choices.

12. We present 5 ‘systems transitions’: energy, industry, urban and infrastructure, land and ecosystems, and societal. Systems transitions can enable #CRD, when accompanied by appropriate enabling conditions and inclusive governance.

13. However, these transitions for #CRD are not ethical or desirable to all actors – enhancing equity and agency are cross-cutting considerations for all 5 transitions.

14. Regional & national differences mean different capacities for pursuing #CRD. Economic sectors & regions are exposed to different opportunities & challenges in facilitating CRD, so adaptation & mitigation must be aligned to local & regional context & development pathways.

15. People, acting through enabling social, economic and political institutions, are the agents of system transitions and societal transformations that facilitate #CRD founded on the principles of inclusion, equity, climate justice, ecosystem health, and human well-being.

16. Scientific assessments of climate change have traditionally framed solutions around the implementation of specific adaptation and mitigation options as mechanisms for reducing climate-related risks...

17. ...They have given less attention to a fuller set of societal priorities and the role of non-climate policies, social norms, lifestyles, power relationships and worldviews in enabling climate action and sustainable development. But we do it in #WGII #IPCC

18. Finally, however, there are only a few decades remaining to chart #CRD pathways that catalyse the transformation of prevailing development practices and offer the greatest promise and potential for human well-being and planetary health. #ClimateReport #IPCC #WGII.

Incidentally, @npjbrooks in case you were wondering it looks like your name fell off the Contributing Authors list! We have already done the necessary to have this fixed in the final version.