The benefits of nature are increasingly well-documented and diverse, but they are inequitably distributed. A large and growing body of literature including observational, experimental, and epidemiological studies support a myriad of benefits of access to nature. Exposure to green settings, including urban green spaces, is associated with positive outcomes related to physical health, ranging from cardiovascular health (Duncan et al., 2014) to pregnancy and birth outcomes (Dadvand et al., 2014). Mental health benefits are also diverse, including recovery from stress (Li and Sullivan, 2016), reduced depression (South et al., 2018), restoration of attention (Joye and Dewitte, 2018), and calming our need to scan for threats (Browning and Alvarez, 2019). Community-level benefits of increased exposure to green spaces include increased community cohesion (Peters et al., 2010) and lower crime levels (Wolfe and Mennis, 2012). In addition, green settings are associated with higher academic achievement (e.g., higher scores on standard tests of attention: Kuo, Browning, and Penner, 2018); and pro-environmental behaviors (Stevenson et al., 2013; Chawla, 2015). However, it is also well documented that access to nature is not equitable. Increasingly, access to nature is a privilege, with low-income communities and communities of color being underrepresented in the use of outdoor spaces (Wen et al., 2013) and having fewer opportunities to engage with nature than their wealthier or white counterparts (Rigolon, 2016). In addition, children in low-income communities may benefit from time in nature to a greater degree than their higher income peers (i.e., the equigenic effect: Mitchell et al., 2015). In short, nature is less accessible to those who would benefit from it most and thus not equitable. Green schoolyards are "school grounds where natural elements are present and abundant" (Children & Nature Network, 2016a: 4). They may include playground equipment, sports facilities, community gathering spaces, accessible pathways, outdoor classrooms, storage, storm water capture elements, nature play settings, trails, etc. Most critically, they include native vegetation (trees, shrubs, grassland, flowers, etc.), pollinator and/or edible fruit and vegetable gardens, associated animal life, and other natural