With ambitious and immediate mitigation efforts, including high levels of electrification and improved energy and material efficiency, global consumption-based urban CO2 and CH4 emissions could be reduced to 3 GtCO2-eq in 2050 in the modelled scenario with very low GHG emissions (SSP1-1.9).56 (medium confidence) {8.3} C.6.2 The potential and sequencing of mitigation strategies to reduce GHG emissions will vary depending on a city’s land use, spatial form, development level, and state of urbanisation