A recent study by the Union of Concerned Scientists highlighted 18 military installations threatened, to varying degrees, by sea-level rise. Marine Corps Air Station Beaufort and the depot -- which is significantly threatened, according to one study author -- were included in the survey. "Half of these bases stand to lose more than a quarter of their land by the end of the century," said Shana Uvardy, a certified flood plain manager and one of the authors of "The U.S. Military on the Front Lines of Rising Seas." "Four of these bases will lose a fifth of their land by 2050," she continued. Parris Island is among them. The air station is less threatened, Uvardy said, because it is farther inland. Regardless, people should care about the threat sea-level rise poses to bases, she said. Tax dollars are at stake, and military installations are economic drivers in their communities.
Raising the stakes
Parris Island's economic impact on the community is more than $570 million dollars annually, according to depot spokesman Staff Sgt. Greg Thomas. The depot employs more than 3,000 people, including 1,300 civilians. Thomas, who first came to the island in 1998, said he personally hasn't noticed any change in sea levels or flooding at the base. "As far as affecting our ability to train recruits, (sea-level rise) doesn't (affect us) at all," he said. Depot officials are talking about sea-level rise, he said, but he's not aware of any action that's been taken to address the matter. There are portions of the beach that are reinforced by large concrete chunks, but those have been there since Thomas' first tour on the island.
Drill instructors present their new Marines with Eagle, Globe and Anchors during the emblem ceremony Sept. 7, 2013, at the Iwo Jima flag raising statue on Parris Island, S.C.
Other installations, such as Langley Air Force Base in Virginia, have taken steps to address the matter, according to Uvardy. At Langley, steps included elevating heating and air-conditioning units and transformers, and installing flood barriers at the entrances of buildings. And, Uvardy said, the base partnered with the National Aeronautics and Space Administration to develop a tool to predict inundation due to flooding. On a driving tour of Parris Island, Thomas said that some of the depot's HVAC units had been raised or were installed on the tops of buildings. And he pointed out units that were still on the ground, such as those adjoined to houses on the base and the unit that sits behind his office building.
There is flooding on the island sometimes, he said, but only after extreme tides and heavy rain. "Climate change effects are being integrated into planning, assessment, response and related decision-making support activities across Parris Island," the Corps said in a statement. Roughly 3,200 acres on the island are "habitable" -- meaning not marsh -- according to Thomas. The highest point on the island is about 20 feet above sea level; the average is about 9. "With Parris Island, it's going to see the flooding sooner, and much more extensively," Uvardy said. "By the end of the century, extreme tides could inundate 85 percent of the installation roughly 10 times per year."
Not gonna creep up on us