A home for all within planetary boundaries: Pathways for meeting England's housing needs without transgressing national climate and biodiversity goals
研究了英格兰现行住房政策对碳预算和生物多样性目标的影响,发现仅住房一项就会消耗104%的累计碳预算,并提出了放缓住房扩张、加速低碳改造等替代策略。
Secure housing is core to the Sustainable Development Goals and a fundamental human right. However, potential conflicts between housing and sustainability objectives remain under-researched. We explore the impact of current English government housing policy, and alternative housing strategies, on national carbon and biodiversity goals. Using material flow and land use change/biodiversity models, we estimate from 2022 to 2050 under current policy housing alone would consume 104% of England's cumulative carbon budget (2.6/2.5Gt [50% chance of < 1.5 °C]); 12% from the construction and operation of newbuilds and 92% from the existing stock. Housing expansion also potentially conflicts with England's biodiversity targets. However, meeting greater housing need without rapid housing expansion is theoretically possible. We review solutions including improving affordability by reducing demand for homes as financial assets, macroprudential policy, expanding social housing, and reducing underutilisation of floor-space. Transitioning to housing strategies which slow housing expansion and accelerate low-carbon retrofits would achieve lower emissions, but we show that they face an unfavourable political economy and structural economic barriers.