A new report from the United Nations Environment Programme and Global Alliance for Buildings and Construction warns that global buildings decarbonisation is slowing despite rising climate risks and housing affordability pressures. Buildings and construction now account for 37% of global emissions and 28% of energy consumption. The report calls for faster energy-efficiency upgrades, stronger building codes, expanded renewable energy use, and USD 5.9 trillion in investment by 2030 to keep the sector aligned with net-zero climate goals.