World leaders who gathered in Paris earlier this month for the annual multinational gathering to address climate change discussed how best to establish a course of action to stabilize greenhouse gases. Buildings, in their construction and operation, are solely responsible for 30 percent of the world's carbon dioxide emissions, making them one of the greatest contributors to climate change. Considering the industry's impact on the environment and its opportunities to support resilience and reduce worldwide energy demand, the U.N. designated its first ever "Buildings Day," on Thursday, December 3. The day-long event involved presentations, panels and speeches on public policies and financial solutions to reduce carbon emissions within the sector in the hopes of aligning initiatives, organizations, partnerships and programs to achieve greater scale and accelerate actions.