At Allegheny, we have recently developed a vehicle to attend to grand challenges: the new initiative called "Concentrations." Because grand challenges cut across disciplines and exceed traditional curricular boundaries, addressing them responsibly requires that academic disciplines be stretched and that academic inquiry be integrated with co-curricular resources. At the institutional level, this kind of work calls for interdisciplinary teams of faculty, staff, and students engaged both in and outside the classroom. Five specific Concentrations have emerged organically out of the concerns and expertise of the Allegheny community: Peace & Conflict, Food Studies, Science & Society, Law & Policy, and Inequalities. Most importantly, Concentrations uniquely provide the opportunity for sustained engagement between Allegheny and our GLCA and GLAA partners in support of interdisciplinary, problem-based inquiry by expanding and enriching collaboration among faculty, staff, and students both internally and among our GLCA- and GLAA-partner institutions. With funding from the GLCA Grand Challenges Program, we aim to use Concentrations to: 1) generate multi-campus collaborative explorations of a number of grand challenges through curricular and co-curricular programing that builds relationships across the GLCA and GLAA institutions; 2) internationalize campus programming related to the development of Concentrations; 3) construct a record and running narrative of collaboration on websites developed around thematic inquiries, as a lasting structural outcome of the project.