GSA has reported progress toward key sustainability goals in recent years across its buildings portfolio. In this report GSA's aggregated buildings portfolio data show it exceeded prior goals for energy efficiency, water efficiency, emissions reduction, and renewable electricity share in fiscal year 2021, however GSA officials cited lack of access to capital as a challenge it faces in meeting future federal sustainability goals. GSA officials said the scale and scope of the projects needed to achieve net-zero building emissions by 2045 will require resources beyond what has historically been available.