The world is following the European Union's lead and taking fast steps to catch up: “Lin-Yi TSAI, Director of the Climate Change Office at the Environmental Protection Administration (EPA) stated that in response to the European Union's CBAM, the EPA will simplify administrative procedures to help small and medium-size enterprises to perform carbon footprint inventories. The Climate Change Response Act currently being drafted will include a carbon tax, with rates taking into consideration the level of domestic economic development and using a phased approach to implementation.”

Not specifically referring to real estate, but close enough.