1. Short title This Act may be cited as the Department of Defense Climate Resiliency and Readiness Act . 2. Definitions In this Act: (1) Climate change The term climate change means a change of climate that is— (A) attributed directly or indirectly to human activity that alters the composition of the global atmosphere; and (B) in addition to natural climate variability observed over comparable time periods. (2) Congressional defense committees The term congressional defense committees has the meaning given that term in section 101(a)(16) of title 10, United States Code. (3) Net zero energy The term net zero energy means, with respect to each installation of the Department of Defense, a reduction in overall energy use, maximization of energy efficiency, and implementation and use of energy recovery and cogeneration capabilities at each installation, and an offset of the remaining demand for energy with production of energy from onsite renewable energy sources at such installation, such that such installation produces as much energy as it uses over the course of a year. (4) Resiliency The term resiliency means, with respect to each installation of the Department of Defense, an anticipation, preparation for, and adaptation of each installation to utility disruptions and changing environmental conditions, and the achievement and maintenance by such installation of the capability to withstand, respond to, and recover rapidly from utility disruptions while ensuring the sustainment of mission-critical operations. (5) Non-operational sources The term non-operational sources — (A) means fixed installations, enduring locations, and non-tactical vehicles of the Department of Defense