Great River Landscapes and Deltas of the World: A Conversation with Kenneth R. Olson

Abstract

This interview with Professor Kenneth R. Olson explores the environmental, historical, and political dimensions of the world’s great river landscapes and deltas. Drawing on decades of interdisciplinary research in soil science, freshwater systems, environmental degradation, and war-related ecological impacts, Olson reflects on how rivers function not only as physical landscapes but also as complex socio-political systems shaped by human intervention, engineering, military conflict, and climate change. Particular attention is given to the Mississippi River flood events, the Mekong Delta, the environmental consequences of herbicide warfare during the Vietnam War, and the long-term impacts of unexploded ordnance and toxic contamination in Southeast Asia. The discussion highlights the importance of field-based research, scientific independence, environmental archiving, and interdisciplinary collaboration in understanding global ecological crises. Olson also addresses the vulnerability of the world’s deltas to subsidence, sea-level rise, pollution, and unsustainable development, emphasizing the urgent need for long-term environmental stewardship and open scientific communication.