The Climate Action Playbook highlights a wide range of mitigation initiatives implemented by U.S. Health Care Climate Council members.The challengeScientific reports have emphasized the urgent need for all sectors of society to take swift, meaningful action to reduce greenhouse gas (GHG) emissions and transition to a 100 percent clean energy economy. Without a rapid transformation to a low carbon society, the health threats of a warmer planet will grow increasingly severe and more numerous, especially for the most vulnerable members of our communities. Alternatively, moving away from dirty fossil fuels to renewable energy promotes cleaner air and water, which generate immediate health benefits.Operating 24/7, hospitals are among the most energy-intensive commercial buildings in the country, using 2.5 times the energy of a typical office building. The footprint of the hospital is vast, ranging from...