Buildings consume 40% of global energy and produce one-third of greenhouse gas emissions. Yet we retrofit less than 1% of building stock annually. At that rate, decarbonizing the built environment would take over a century. The climate does not have a century. The Compliance Crisis Is Already Here NYC Local Law 97 now imposes carbon intensity limits on over 50,000 buildings, with penalties of $268 per ton of CO2 over the limit. ASHRAE 90.1 efficiency standards grow stricter e