Professor Krueger is a human geographer whose scholarship and teaching focus on creating sustainable, socially just, improvements to development projects in the global north and south. He has worked in countries in North America, Europe, Asia, and Africa, on issues of economic development and institutional change. His scholarship and teaching challenge conventional notions of economic development, economy-environment relationships, and social change. Krueger challenges students of sustainable urbanism to visualize new sustainable futures, beyond green technology, energy efficiency, and smart growth.