Climate change is imposing significant and growing costs on taxpayers and creating serious national security risks. In an October 2021 report, the Pentagon argued that “climate change is reshaping the geostrategic, operational, and tactical environments with significant implications for U.S. national security and defense.” In a June 2023 report, “Paying the Price of Climate Change,” Taxpayers for Common Sense documented some of the increasing costs facing taxpayers, ranging from soaring disaster spending to investments in adaptation, resilience, and mitigation. The federal government, spending nearly $700 billion annually on goods and services, should logically shape procurement policies to mitigate the financial and security risks associated with climate change.