This should include: • Removing land use and building regulations that limit higher, liveable density; • Reforming energy markets to decarbonise the electricity grid by mid-century; • Introducing net zero building codes in all buildings with minimal use of offsetting by 2030; • Banning the sale of fossil fuel-powered vehicles from 2030; • Adopting green alternatives to steel and cement by 2030; an. [...] This should include: • Legislation explicitly clarifying the roles and powers of different tiers of government, including measures to enhance own-source revenue options; • Creating integrated land use and transport authorities for cities; • Strengthening the capacities of built-environment professionals to pursue zero-carbon, climate-resilient development. [...] This should include: • Placing cities at the heart of the next round of Nationally Determined Contributions in 2020 and 2025, both by enacting national reforms to enable enhanced local level action and harnessing the greater mitigation potential from concentrating people, infrastructure, and economic activity in cities. [...] • Example: Mexico has been systematically recording climate policies and projects by states and municipalities, and will use them to enhance national ambition in the next round of the climate negotiations. [...] This should include: • Strengthening tenure security for the urban poor; • Enhancing climate resilience and gender equality by educating all young people; • Using revenues from carbon taxes or fossil fuel subsidy reform to compensate those who bear the costs of climate action; • Supporting local governments to make well-located, serviced land available for growing urban populations; • Supporting c.