fig4

Figure 4. Carbon Emission Reduction potential of a comprehensive set of Source-Sink Integration technologies. (A) Proportion of Carbon Reduction from Technologies under Different Scenarios in 2040. (B) Comparison of 2040 Technology Portfolios with Scenario Simulation Results. BAU: Business-as-usual; GD: general development; BD: balanced development; HQD: high-quality development; CCHP: combined cooling, heating and power; VPP: virtual power plant; ES: energy storage; EEBD: energy-efficient building design; EC: electric car; NEB: new energy bus; GTSO: green travel structure optimization; SR: source-sorted recycling; RU: rainwater utilization; RWR: reclaimed water reuse; HCSPCCD: high carbon sink plant combinations and community design; AGSC: affiliated green space construction; RG: rooftop greening; VG: vertical greening.