Seminar leader: Adam Sobel, Lamont-Doherty Earth Observatory
About the Readings
The future role of dams in the United States of America (2017), Ho et al.
Storage and controlled distribution of water have been key elements of a human strategy to overcome the space and time variability of water, which have been marked by catastrophic droughts and floods throughout the course of civilization. In the United States, the peak of dam building occurred in the mid-20th century with knowledge limited to the scientific understanding and hydrologic records of the time. Ecological impacts were considered differently than current legislative and regulatory controls would potentially dictate. Additionally, future costs such as maintenance or removal beyond the economic design life were not fully considered. The converging risks associated with aging water storage infrastructure and uncertainty in climate in addition to the continuing need for water storage, flood protection, and hydropower result in a pressing need to address the state of dam infrastructure across the nation. Decisions regarding the future of dams in the United States may, in turn, influence regional water futures through groundwater outcomes, economic productivity, migration, and urban growth. We advocate for a comprehensive national water assessment and a formal analysis of the role dams play in our water future. We emphasize the urgent need for environmentally and economically sound strategies to integrate surface and groundwater storage infrastructure in local, regional, and national water planning considerations. A research agenda is proposed to assess dam failure impacts and the design, operation, and need for dams considering both paleo and future climate, utilization of groundwater resources, and the changing societal values toward the environment.
Environmental Harm or Natural Hazard? Problem Identification and Adaptation in U.S. Municipal Climate Action Plans (2016), Koski and Siulagi
A number of cities in the United States have devised climate action plans (CAPs) to mitigate the effects of climate change. However, few of these plans address strategies to adapt to the long term effects of climate change that will occur in the near and distant future. The research presented in this article examines why cities choose to embed adaptation provisions in their CAPs. Our study codes the content of CAPs for all cities (N = 98) in the United States with populations greater than 50,000. We find cities that frame problems associated with climate change in the language of hazards are more likely to include adaptation strategies in their CAPs than cities that focus on other types of environmental harm. Our findings suggest that more robust efforts to plan for climate change will require the activation of communities of interest beyond those that have been instrumental in setting the current climate agenda.