Getting bipartisan support for sea level rise adaptation policies

2020 ◽  
Vol 197 ◽  
pp. 105298
Author(s):  
Bruce E. Cain ◽  
Elisabeth R. Gerber ◽  
Iris Hui
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Adaptation Policies ◽  
Sea Level Rise Adaptation

COLLABORATIVE STRATEGIES FOR SEA LEVEL RISE ADAPTATION IN HAMPTON ROADS, VIRGINIA

2018 ◽  
Vol 13 (3) ◽  
pp. 193-214 ◽  
Author(s):  
Carol Considine ◽  
Emily Steinhilber
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Regional Scale ◽  
The United States ◽  
Tourism Industry ◽  
Collaborative Problem Solving ◽  
Hampton Roads ◽  
Global Rate ◽  
Municipal Boundaries ◽  
Sea Level Rise Adaptation

INTRODUCTION The Hampton Roads region is located in southeastern Virginia where the Chesapeake Bay meets the Atlantic Ocean. The region includes seventeen municipal governments and has a large federal government presence with 26 federal agencies represented (See Figure 1). The region has a population that exceeds 1.7 million and is home to the deepest water harbor on the U.S. East Coast. Hampton Roads' economy is dependent on the local waterways and houses the world's largest naval facility, the sixth largest containerized cargo complex and supports a thriving shipbuilding and repair industry as well as a tourism industry. However, the region's vast coastline also contributes to its vulnerability from climate change. Hampton Roads is experiencing sea level rise at twice the global rate with regional projections in the January 2017 National Oceanic and Atmospheric Administration (NOAA) report, Global and Regional Sea Level Rise Scenarios for the United States, of 1.9 feet of sea level rise at the low end and 11.5 feet of sea level rise under the most extreme case between 2000 and 2100 (NOAA, 2017). Planning for adaptation to sea level rise requires regional partnerships and strategies, especially for watersheds that cross municipal boundaries. While many of the municipalities in the region are forward thinking in their approaches to sea level rise, there is not a regional plan for adaptation and current federal funding models do not support analysis of and planning for sea level rise impacts on a regional scale. For coastal communities to be successful in sea level rise adaptation, there has to be a national understanding that water knows no borders and only collaborative problem-solving approaches that cross municipal boundaries will move regions toward adaptation. Functional boundaries of ecosystems or watersheds need to be the focus of adaptation rather than political boundaries of local, state, and federal entities. Coordination and collaboration between entities is the only way to achieve optimal outcomes.

Port of Los Angeles Sea Level Rise Adaptation Plan

Ports 2019 ◽  
2019 ◽  
Author(s):  
Adrienne Fedrick Newbold ◽  
Bettina Kaes ◽  
Jeff Khouri ◽  
Richard Mast ◽  
Justin Vandever
Keyword(s):  
Los Angeles ◽  
Sea Level Rise ◽  
Sea Level ◽  
Port Of Los Angeles ◽  
Sea Level Rise Adaptation

Exploring the effects of adaptation policies on sea-level rise-induced migration at continental scale

2021 ◽  
Author(s):  
Lena Reimann ◽  
Bryan Jones ◽  
Claudia Wolff ◽  
Athanasios Vafeidis
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Development Planning ◽  
Population Projections ◽  
Continental Scale ◽  
Coastal Adaptation ◽  
Adaptation Policies ◽  
The Mediterranean ◽  
And Migration ◽  
Policy Scenarios

<p>Accelerating sea-level rise (SLR) in the course of the 21<sup>st</sup> century will lead to population displacement and migration, the intensity and patterns of which will largely depend on the type and efficiency of adaptation strategies pursued. Thus far, the potential feedbacks between adaptation and SLR-induced migration have not been considered in continental-scale assessments. This study explores the effect of three coastal adaptation policy scenarios – 1) ‘build with nature’, 2) ‘hold the line’, 3) ‘save yourself’ – on migration due to SLR, using a gravity-based population downscaling model calibrated to the Mediterranean region. The policy scenarios are consistent with the socioeconomic developments described under the Shared Socioeconomic Pathways (SSPs). Combining these with a range of SLR scenarios, we produce spatial population projections from 2020 to 2100 that allow for estimating SLR-induced migration with and without adaptation. Preliminary results show that, without adaptation, SLR may lead to migration of 10 million (SSP1-RCP2.6) to 16 million (SSP3-RCP4.5) people currently living in low-lying coastal areas of the Mediterranean until 2100. With adaptation, the number of migrants until 2100 could be reduced by 2.1 million under the ‘build with nature’ scenario (SSP1-RCP2.6) and by up to 6 million under the ‘hold the line’ scenario (SSP5-RCP8.5). These results suggest that adaptation can be effective in reducing the number of migrants due to SLR, in particular when engineered solutions such as dikes are pursued. However, while the number of SLR-related migrants can be reduced by 50% under the ‘hold the line’ scenario, impacts would be high in case of protection failure during extreme sea level conditions. Allowing for exploring the effects of different adaptation policies on SLR-induced migration, we anticipate that our findings can provide a suitable basis for decision-making, for example in adaptation planning or regional development planning.</p>

scholarly journals Collective action problems and governance barriers to sea-level rise adaptation in San Francisco Bay

2021 ◽  
Vol 167 (3-4) ◽  
Author(s):  
Mark Lubell ◽  
Mark Stacey ◽  
Michelle A. Hummel
Keyword(s):  
Collective Action ◽  
Sea Level Rise ◽  
Sea Level ◽  
San Francisco ◽  
Climate Adaptation ◽  
San Francisco Bay ◽  
Diagnostic Approach ◽  
Governance System ◽  
Collective Action Problems ◽  
Sea Level Rise Adaptation

AbstractThis paper translates Ostrom’s “diagnostic approach” for social-ecological systems to identify the collective action problems and core governance barriers for sea-level rise adaptation in the San Francisco Bay Area. The diagnostic approach considers variables related to the resource system, the resource units, the users, and the governance system. Coupled ecological-infrastructure models identify two core collective action problems: vulnerability interdependency and adaptation interdependency. Qualitative social science case study methods identify the key structural governance and behavioral barriers to cooperation and ongoing activities to address them. The diagnostic approach is potentially applicable to any coastal regions that are vulnerable to sea-level rise and also other climate adaptation issues where vulnerability and adaptation interdependencies require overcoming governance challenges to collective action.

scholarly journals A Framework for Classifying and Assessing Sea Level Rise Risk

2020 ◽  
Author(s):  
Mathew Hauer ◽  
Dean Hardy ◽  
Scott Kulp ◽  
Valerie Mueller ◽  
David Wrathall ◽  
...  
Keyword(s):  
At Risk ◽  
Sea Level Rise ◽  
Sea Level ◽  
High Tide ◽  
High Water ◽  
At Risk Populations ◽  
Adaptation Policies ◽  
New Research ◽  
High Tide Line ◽  
Impacts Of Climate Change

Population risk assessments of sea level rise are key to understanding the impacts of climate change on coastal communities and necessary for adaptation planning. Future sea level rise exposes coastal populations to a spectrum of risk, but assessments often define exposure narrowly, such as areas experiencing permanent inundation only. We reviewed the most common sea level rise exposure assessment methods and identified three widely used spatial definitions of physical exposure risk: mean higher high water, the 100-year floodplain, and the low-elevation coastal zone. Taken individually, each treat risk to sea level rise as binary (affected or not affected), resulting in narrow definitions, homogenizing risk and exposure across space and time. We present a framework that integrates and smooths these classifications under a single continuous metric. To do so, we advance a sophisticated spatiotemporal flood-modeling approach -- expected annual exposure -- based on a probabilistic spatial envelope that unifies spatial extents between the high-tide line and the 10,000-year floodplain. We show that the effects from sea level rise will impact far more people far sooner than previously thought. In particular, our results suggest that single, binary extent assessments either underestimate or overestimate the magnitude of the at-risk populations while also spatially homogenizing the impacts to sea level rise. Our advance on modeling annual exposure provides a more robust and holistic assessment of the populations most at-risk to flooding from sea level rise. This typology can be used to guide new research connecting risk of sea level rise to related adaptation policies and planning.

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