Wednesday, December 1, 2010 at 10:00 AM EST
Rising Seas, Climate Change & the Viriginia Coast
As the U.N. talks about climate in Cancun, coastal Norfolk, VA, is
already dealing with rising sea levels.
http://www.onpointradio.org/2010/12/climate-seas
Norfolk, VA (Credit: Joey Sheely, Wikimedia Commons)
Norfolk, Virginia is one of the oldest cities in America. It's a
city on the water, at the mouth of Chesapeake Bay.
And if you live in Norfolk, what you see is the water rising.
Norfolk's land base is settling. The seas are getting higher.
The combination has put Norfolk out front in confronting what cities
all over the world may face in a century of climate change: water in
the streets; big decisions on what to save and where to retreat; and
huge costs.
Climate change deniers hate the conversation, but in Norfolk, it's
reality time. We look at getting real about high water, and what's
to come.
-Tom Ashbrook
Guests:
Leslie Kaufman, national reporter covering the environment for the New
York Times and author of the recent article "Front-Line City in
Virginia Tackles Rise in Sea."
William "Skip" Stiles, executive director of Wetlands Watch.
Theresa Whibley, Norfolk city councillor representing Ward 2, which
contains some of the areas of Norfolk hardest hit by flooding.
Orrin Pilkey, professor emeritus of Earth and Ocean Sciences at Duke
University. He's co-author of "The Rising Sea
Front-Line City in
Virginia Tackles Rise in Sea
Matthew Eich for The New York Times
The city of
Norfolk, Va., is spending a lot of money to raise Richmond Crescent by
18 inches to avert routine flooding at high tide.
By LESLIE KAUFMAN
Published: November
25, 2010
http://www.nytimes.com/2010/11/26/science/earth/26norfolk.html?_r=1
NORFOLK, Va. -
In this section of the Larchmont neighborhood, built in a sharp "u"
around a bay off the Lafayette River, residents pay close attention to
the lunar calendar, much as other suburbanites might attend to the
daily flow of commuter traffic.
If the moon is
going to be full the night before Hazel Peck needs her car, for
example, she parks it on a parallel block, away from the river. The
next morning, she walks through a neighbor's backyard to avoid the
two-to-three-foot-deep puddle that routinely accumulates on her street
after high tides.
For Ms. Peck and
her neighbors, it is the only way to live with the encroaching
sea.
As sea levels rise, tidal flooding is increasingly disrupting life
here and all along the East Coast, a development many climate
scientists link to global warming.
But Norfolk is worse off. Situated just west of the mouth of
Chesapeake Bay, it is bordered on three sides by water, including
several rivers, like the Lafayette, that are actually long tidal
streams that feed into the bay and eventually the ocean.
Like many other cities, Norfolk was built on filled-in marsh. Now that
fill is settling and compacting. In addition, the city is in an area
where significant natural sinking of land is occurring. The result is
that Norfolk has experienced the highest relative increase in sea
level on the East Coast - 14.5 inches since 1930, according to
readings by the Sewells Point naval station here.
Climate change is
a subject of friction in Virginia. The state's attorney general, Ken
T. Cuccinelli II, is trying to prove that a prominent climate
scientist engaged in fraud when he was a researcher at
the
University of Virginia. But the residents of coastal neighborhoods here are
less interested in the debate than in the real-time consequences of a
rise in sea level.
When Ms. Peck, now 75 and a caretaker to her husband, moved here 40
years ago, tidal flooding was an occasional hazard.
"Last month," she said recently, "there were eight or nine days
the tide was so doggone high it was difficult to drive."
Larchmont
residents have relentlessly lobbied the city to address the problem,
and last summer it broke ground on a project to raise the street
around the "u" by 18 inches and to readjust the angle of the storm
drains so that when the river rises, the water does not back up into
the street. The city will also turn a park at the edge of the river
back into wetlands - it is now too saline for lawn grass to grow
anyway. The cost for the work on this one short stretch is $1.25
million.
The expensive
reclamation project is popular in Larchmont, but it is already drawing
critics who argue that cities just cannot handle flooding in such a
one-off fashion. To William Stiles, executive director of Wetlands
Watch, a
local conservation group, the project is well meaning but absurd. Mr.
Stiles points out that the Federal Emergency Management
Agency has
already spent $144,000 in recent years to raise each of six houses on
the block.
At this pace of
spending, he argues, there is no way taxpayers will recoup their
investment.
"If sea level is a constant, your coastal infrastructure is your
most valuable real estate, and it makes sense to invest in it," Mr.
Stiles said, "but with sea level rising, it becomes a money
pit."
Many Norfolk
residents hope their problems will serve as a warning.
"We are the front lines of climate change," said Jim Schultz, a
science and technology writer who lives on Richmond Crescent near Ms.
Peck. "No one who has a house here is a skeptic."
Politics aside, the city of Norfolk is tackling the sea-rise problem
head on. In August, the Public Works Department briefed the City
Council on the seriousness of the situation, and Mayor Paul D. Fraim
has acknowledged that if the sea continues rising, the city might
actually have to create "retreat" zones.
Kristen Lentz, the acting director of public works, prefers to think
of these contingency plans as new zoning opportunities.
"If we plan land
use in a way that understands certain areas are prone to flooding,"
Ms. Lentz said, "we can put parks in those areas. It would make the
areas adjacent to the coast available to more people. It could be a
win-win for the environment and community at large and makes smart use
of our coastline."
Ms. Lentz believes
that if Norfolk can manage the flooding well, it will have a
first-mover advantage and be able to market its expertise to other
communities as they face similar problems.
But she also acknowledges that for the businesses and homes entrenched
on the coast, such a step could be costly, and that the city has no
money yet to pay them to move.
In the short run,
the city's goal is just to pick its flood-mitigation projects more
strategically. "We need to look broadly and not just act piecemeal,"
Ms. Lentz said, referring to Larchmont.
To this end,
Norfolk has hired the Dutch firm Fugro to evaluate options like inflatable dams and
storm-surge floodgates at the entrances to waterways.
But to judge by
the strong preference in Larchmont for action at any cost, it may not
be easy for the city to choose which neighborhoods might be passed
over for projects.Neighborhood residents lobbied hard for the 18-inch
lifting of their roadway, even though they know it will offer not much
protection from storms, which are also becoming more frequent and
fearsome. Many say that housing values in the neighborhood have
plummeted and that this is the only way to stabilize them.
Others like Mr.
Schultz support the construction, even though they think the results
will be very temporary indeed.
"The fact is that there is not enough engineering to go around to
mitigate the rising sea," he said. "For us, it is the bitter
reality of trying to live in a world that is getting warmer and
wetter."
A version of this
article appeared in print on November 26, 2010, on
The Rising
Sea
[Hardcover]
Orrin H.
Pilkey
(Author), Rob
Young
http://www.amazon.com/Rising-Sea-Orrin-H-Pilkey/dp/1597261912
From Publishers
Weekly
Veteran
academics Pilkey (The Corps and the Shore) and Young (a geoscientist
and Pilkey's former student) team up to offer a rational approach to
inevitably rising sea levels over the next century, an unprecedented
problem for human civilization: for the first time a densely developed
shoreline is putting the ways of life of millions of people at risk."
Even with a significant reduction in carbon emissions, sea levels will
continue to rise and, combined with increasingly severe storms, force
a retreat from the shoreline. Thus, the authors make a strong case for
an immediate halt to high-rise construction "in areas vulnerable
to future sea level rise" coupled with the relocation of
buildings and infrastructure, to be executed "when major
maintenance is needed." Simultaneously, steps should be taken to
protect coastal marshes, mangroves and especially coral reefs
("the most biologically diverse environments in the modern
ocean"). Pilkey and Young make short work of costly plans like
sea walls and artificial beaches, with provide no long-term
protection. Pilkey and Young's balanced, optimistic perspective on the
tough decisions that lie ahead should garner interest from policy
makers and real estate developers as well as
environmentalists.
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