A Three-Body Problem: Ecology, Governance and Urban Inequality in the Nairobi River Basin

Urban river degradation in Nairobi is often addressed through technical or enforcement-led interventions that overlook the complex social and institutional dynamics shaping environmental outcomes. Drawing on systems thinking, degrowth, climate justice, pluriversal and insurgent planning perspectives, this research examines the Nairobi River Basin as a “three-body problem,” in which ecological systems, governance institutions, and marginalized urban communities interact in unstable and often conflicting ways. Based on qualitative fieldwork, interviews with government agencies, NGOs, and community-based organizations, alongside participatory mapping and field observations in Mathare, Kibera, Dandora and Korogocho, the study reveals how fragmented governance, infrastructural deficits, and social inequality mutually reinforce environmental degradation. While informal settlements are frequently blamed for pollution and riparian encroachment, the findings demonstrate that environmental vulnerability is structurally produced through exclusionary planning practices, selective enforcement, and chronic underinvestment in sanitation and waste infrastructure. These dynamics have contributed to displacement rather than resilience, undermining both social trust and long-term ecological solutions. At the same time, community-led initiatives and NGO partnerships emerge as important forms of environmental stewardship, grounded in local knowledge, trust-building, and co-creation, challenging narratives that frame riverine communities as obstacles rather than contributors to regeneration. The paper argues that sustainable river regeneration in Nairobi requires a fundamental shift in governance approaches, from control-oriented regulation toward collaborative and inclusive planning that acknowledges the interdependence of environmental systems, political decision-making, and urban livelihoods. By framing Nairobi’s river crisis as a relational systems challenge rather than a singular technical failure, the study contributes to broader debates on urban environmental justice, participatory planning, displacement, and institutional reform in the Global South.