Grounded in The Broad’s collection of multiples by Joseph Beuys (1921–86), In Defense of Nature centers the German artist’s commitment to environmental justice. The project traces Beuys’ long history of activism, from founding alternative organizations such as the Organization for Direct Democracy to his involvement in Germany’s Green Party. These efforts culminated in Beuys’ last major project, 7,000 Oaks, which involved planting 7,000 trees accompanied by stones throughout the city of Kassel, Germany, from 1982 to 1987. Beuys’ concept inspired Social Forest: Oaks of Tovaangar, a reforestation project in Los Angeles inaugurated as part of the PST ART initiative. With programs that address overlapping issues of environmental justice, reconciliation, and restoration, Social Forest highlights the continued impact of 7,000 Oaks and brings new meaning to Beuys' legacy four decades later, in a vastly different landscape that equally demands repair.