Coastal resilienceSea-level rise threatens $40 billion of national park assets, historical and cultural infrastructure

Published 29 June 2015

U.S. Secretary of the Interior Sally Jewell last week released a report revealing that national park infrastructure and historic and cultural resources totaling more than $40 billion are at high risk of damage from sea-level rise caused by climate change. The report was conducted by scientists from the National Park Service and Western Carolina University and is based on an examination of forty parks — about one-third of those considered threatened by sea-level rise — and the survey is on-going.

In advance of the two-year anniversary of President Obama’s Climate Action Plan, U.S. Secretary of the Interior Sally Jewell last week released a report revealing that national park infrastructure and historic and cultural resources totaling more than $40 billion are at high risk of damage from sea-level rise caused by climate change. The report was conducted by scientists from the National Park Service and Western Carolina University and is based on an examination of forty parks — about one-third of those considered threatened by sea-level rise — and the survey is on-going.

“Climate change is visible at national parks across the country, but this report underscores the economic importance of cutting carbon pollution and making public lands more resilient to its dangerous impacts,” said Jewell. “Through sound science and collaboration, we will use this research to help protect some of America’s most iconic places — from the Statue of Liberty to Golden Gate and from the Redwoods to Cape Hatteras — that are at risk from climate change.”

The Department of the Interior notes that specific projections of sea level rise vary by site and time, but scientists expect a one-meter rise in sea level to occur in the next 100-150 years. In some select areas of Alaska, relative sea-level is decreasing because as land-based glaciers and ice sheets melt, land mass is actually rising faster than sea-levels. Both phenomena make changes in sea-level a useful standard to assess vulnerability across the diversity of coastal area national parks.

“Many coastal parks already deal with threats from sea-level rise and from storms that damage roads, bridges, docks, water systems and parking lots,” said National Park Service Director Jonathan B. Jarvis. “This infrastructure is essential to day-to-day park operations, but the historical and cultural resources such as lighthouses, fortifications and archaeological sites that visitors come to see are also at risk of damage or loss.”