His line of research centers on planning for urban green space and health equity, using an environmental justice lens. His current work covers three related areas: planning and policy determinants of (in)equitable park provision, drivers and resistance to gentrification fostered by new parks (i.e., green gentrification), and the public health impacts of urban green space on marginalized communities. Alessandro’s research focuses on planning efforts for a wide range of green spaces, including parks, greenways and trails, urban waters, street trees, and greened vacant lots.