Yuehui Gong, Courtesy LAF. Global problems meet regional politics in the field’s most ambitious venture in a century.   In March of 2020, Barbara Deutsch, FASLA, the CEO of the Landscape Architecture Foundation (LAF), hosted a small gathering at the foundation’s office in Washington, D.C. Among those in attendance were Billy Fleming, ASLA, the Wilks Family Director of the Ian L. McHarg Center for Urbanism and Ecology at the University of Pennsylvania; Kate Orff, FASLA, the director of the Urban Design Program at Columbia University and a board member of LAF; Thaddeus Pawlowski, the director of the Center for Resilient Cities and Landscapes (CRCL) at Columbia University; and Richard Weller,…