Last year before CoP26, we spoke to Scott Foster, the Director of Sustainable Energy and Jenna Crammer at the Green Building Alliance in Pittsburgh. This year between the 21st and 23rd of September, the U.S. will host the first ever Global Clean Energy Action Forum in Pittsburgh. The three-day event will feature a high-level plenary, topical roundtable with energy and science ministers from 31 countries, CEOs and experts, side events, technology demonstrations, and other activities. As the High-Performance Buildings Initiative – Centres of Excellence will feature throughout the summit, we thought we would rerelease the episode we did last year.