Cities are already facing the impacts of climate change and are highly vulnerable to a range of climate hazards, including sea level rise, street flooding, landslides, droughts, epidemics and severe heat waves, which threaten the heath, well-being and livelihood of citizens. Cities are integral to fighting climate change; while they are responsible for 37–49% of global GHG emissions, and urban infrastructure accounts for over 70% of global energy use, research shows that urban policy decisions made by 2020 could determine up to a third of the remaining global carbon budget that is not already ‘locked-in’ by past decisions.
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