Sustainable development considerations could be used to prioritise mitigation options, but as noted earlier, there are trade-offs, with a potentially significant impact on the economic cost of mitigation, as well as a potential trade-off in terms of the climate outcomes that are still viable . For instance, all of the 1.5℃ scenarios used in IPCC  deploy carbon dioxide removal technologies . Without these technologies, most models cannot generate pathways that limit warming to 1.5ºC, and those that are able to adopt strong assumptions about global policy development and socioeconomic changes. Sustainable development might also affect the design of policies by prioritising specific sustainable development objectives. However, there are trade-offs here as well, with costs and the distribution of costs varying with alternative policy designs. For instance, prioritising air quality has climate co-benefits but does not ensure the lowest cost climate strategy . Similarly, prioritising land protection has a variety of co- benefits but could increase food prices significantly, as well as the overall cost of climate mitigation . In this context, with lower climate risk and adaptation levels and larger mitigation effort, managing mitigation trade-offs could be a sustainable development priority. Furthermore, sustainable development could also be tailored to facilitate adaptation and manage mitigation costs.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report