We are organizations, firms, and sub-national governments responsible for planning, designing, constructing, and developing the built environment globally.

We are taking specific actions that fully harness our capacity to affect significant carbon emissions reductions in order to retain a 67% or better probability of meeting the Paris Agreement’s 1.5ºC budget of 340-400 GTCO₂; a 50-65% emissions reduction by 2030, and zero CO₂ emissions by 2040.

The built environment is the largest source of the world’s carbon emissions with buildings responsible for approximately 40%, and when accounting for the embodied carbon of building interiors, systems, and associated infrastructure, that percentage is substantially higher. Our professions and industries are transforming and taking significant action to mitigate and adapt to climate change. By showing what is possible, we are emboldening others to do the same.

We call on all sovereign governments to ramp up their Nationally Determined Contributions, and 2030 emissions reduction targets, to limit planetary warming in line with the remaining global 1.5ºC carbon budget.