The Ocean Protection Council’s 2018 update of the California Sea-Level Rise Guidance is designed in support of state agencies and local governments preparation for and adaption to sea-level rise (SLR). The report includes a step-by-step approach to SLR risk analysis, and incorporating these projections into planning, permitting, and investment decisions. Recommended adaptation strategies are given for priorities such as bolstering the resilience vulnerable communities and coastal habitats, and incorporating climate change impacts into project design and coastal planning.
This tool is created and maintained by the College of William and Mary’s Virginia Institute of Marine Science (VIMS) and provides annual sea-level rise projections and trends for 32 localities across the nation where the National Oceanic and Atmospheric Administration (NOAA) maintains tidal gauges. The report cards are novel in that sea-level rise projections are presented on a local scale and expected to be updated annually (in January) as tidal gauge data becomes available. In comparison, similar data sets are often on a global scale and released after longer time spans.
San Mateo County, California is particularly vulnerable to sea level rise as it is bound by the Pacific Ocean to the west and the San Francisco Bay to the east. This comprehensive 200+ page sea level rise vulnerability assessment offers a highly detailed analysis of the current and future coastal flooding and erosion risks for the County in terms of various sectors and networked infrastructure including critical infrastructure assets, impacts on human mental and physical health, vulnerable populations, and natural communities and ecosystems.
A program of the Waterfront Alliance, WEDG is a tool for use prior to and during the design process of waterfront projects. Created for professionals, communities, and landowners, the tool is a credit system and series of guidelines to develop and enhance coastal projects on a voluntary basis. The guidelines support decision making for development that is resilient to the coastal impacts of climate change, enhances ecological protections, and provides equitable public access.
The City of Norfolk, Virginia adopted a new zoning ordinance to enhance flood resilience and direct new more intense development to higher ground; the ordinance was adopted on January 23, 2018 and became effective on March 1, 2018. The ordinance establishes a Coastal Resilience Overlay (CRO) zone, where new development and redevelopment will have to comply with new flood resilience requirements, and an Upland Resilience Overlay (URO), designed to encourage new development in areas of the city with lower risk of flooding.
Marin County’s “Collaboration: Sea-level Marin Adaptation Response Team” (C-SMART) is a multi-stakeholder, inter-governmental partnership that collaborates to determine sea level rise impacts and adaptation options for the county. This comprehensive analysis from C-SMART presents strategies for increasing resiliency of Marin’s coast with options to accommodate, protect against, or retreat from the threats of sea level rise and coastal hazards.
The Stanford Center for Ocean Solutions released a series of policy briefs for coastal planners to help them develop strategies for adapting to sea-level rise, including engineered, financial, and legal and regulatory strategies.
The National Oceanic and Atmospheric Administration (NOAA) analyzes “high tide flooding” (also known as “nuisance flooding”) in this report, and finds that it is becoming more commonplace due to sea level rise. High tide flooding impacts roads, beaches, parks, and private property, and is generally more disruptive than damaging. However, there are places such as Norfolk, Virginia; San Diego, California; and the U. S Marshall islands where it is currently a serious problem. Even more, with continued sea level rise, flooding is likely to increase.
New Hampshire’s Department of Environmental Services administers the Climate Risk in the Seacoast (C-RiSe) project which is intended to provide municipalities along the Great Bay with the resources they need to assess sea level rise and storm surge flooding. The Great Bay communities that have been assessed include: Rollinsford, Dover, Madbury, Durham, Newmarket, Newfields, Exeter, Stratham, Greenland, and Newington. This project is funded through the Coastal Zone Management Act by the National Oceanic and Atmospheric Administration (NOAA).
Hawaii’s Sea Level Rise Vulnerability and Adaptation Report was initially mandated by the Hawaii Climate Change Adaptation Initiative (Act 83, 2014, and expanded by Act 32, 2017). This report represents the first state-wide vulnerability assessment for sea level rise (SLR) coastal hazards in Hawaii. Statewide and island specific adaptation recommendations are given to help reduce Hawaii’s exposure to sea level rise and increase coastal hazard resilience.