Since 2000, there has been a surge in hydropower development globally. This contemporary hydropower boom is distinguished from earlier periods by four key dynamics:

  1. An increase in small-scale, run-of-river, and other alternative forms of hydropower
  2. The growing urgency for decarbonization
  3. A rise in bilateral and public–private finance
  4. The existence of international standards for minimizing the socio-environmental impacts of hydropower development

Despite these shifts, hydropower development continues to spark fierce social resistance. We conducted a systematic review of 116 peer-reviewed articles and 180 Environmental Justice Atlas profiles to better understand the nature of contested hydropower development and the dynamics of social resistance to it.

From this dataset, we gathered information about 265 unique hydropower projects that have sparked conflicts. We found that there was relatively little overlap among the cases featured in the peer-reviewed and EJ Atlas datasets, suggesting opportunities for further exchange between scholarly and social movement actors. Both datasets included projects of all types and sizes, demonstrating that many small and alternative forms of hydropower remain contentious. We found very few cases that discussed social movement actors engaging directly with the shifting global dynamics of hydropower development. We found only 12 cases of anti-dam activists evoking climate justice discourse or engaging with climate justice movements. In most cases, contested projects were backed by multiple types of funders, with a notable shift toward public-private and bilateral finance. The sensitivity of these emerging funders to local opposition remains unclear. We found few cases in which international standards had been used or invoked to hold hydropower developers accountable for social and environmental impacts. Ultimately, there remains a disconnect between local struggles and the shifting global dynamics shaping hydropower development, highlighting potentially fruitful future directions for both scholars and social movement actors.

About the authors

Meg Mills-Novoa

Assistant Professor, Environmental Science, Policy, and Management

Sophia Borgias

Assistant Professor, Boise State University School of Public Service