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At the coast all is not what it seems. Decades of beachfront
development have seen a variety of efforts to stabilize the
shoreline to protect ill-placed beachfront property, both from
shoreline erosion and from storm damage. Both of these problems
become increasingly critical in a time of rising sea level. Many
natural beaches are backed by sea walls, while others have been
transformed by whole series of groynes, offshore breakwaters and a
plethora of other schemes. Many recreational beaches are actually
artificial replicas of the real thing, emplaced to protect badly
placed infrastructure and maintained only through ongoing costly
beach nourishment. However, all of these attempts to stabilize the
shoreline are far from benign. Degradation and even complete loss
of the all important recreational beach sometimes results from
seawall emplacement. Increasingly, the choice of shoreline
stabilization approach will depend upon plans for future response
to rising seas which in many cases may involve retreat from the
shoreline rather than holding the line. This book explores, through
a series of case studies from around the globe, the pitfalls of
shoreline stabilization and provides a ready reference for those
with an interest in shoreline management. It is particularly timely
in a time of global change.
This book draws together a series of studies of spit geomorphology
and temporal evolution from around the world. The volume offers
some unique insights into how these landforms are examined
scientifically and how we as humans impact them, offering a global
perspective on spit genesis and evolution. Spits are unique natural
environments whose evolution is linked to the adjacent coast and
near shore morphology, sediment supply, coastal dynamics and
sea-level change. Over the past century, Global Mean Sea Level
(GMSL) has risen by 10 to 20 centimetres and many coastal spits
represent the first sentinel against coastal submersion. Scientific
research indicates that sea levels worldwide have been rising at a
rate of 3.5 millimetres per year since the early 1990s, roughly
twice the average speed of the preceding 80 years. This trend,
linked to global warming will undoubtedly cause major changes in
spit morphology. Spits are highly mobile coastal landforms that
respond rapidly to environmental change. They therefore represent a
signature of past environmental change and provide a landform
indicator of climate change.
At the coast all is not what it seems. Decades of beachfront
development have seen a variety of efforts to stabilize the
shoreline to protect ill-placed beachfront property, both from
shoreline erosion and from storm damage. Both of these problems
become increasingly critical in a time of rising sea level. Many
natural beaches are backed by sea walls, while others have been
transformed by whole series of groynes, offshore breakwaters and a
plethora of other schemes. Many recreational beaches are actually
artificial replicas of the real thing, emplaced to protect badly
placed infrastructure and maintained only through ongoing costly
beach nourishment. However, all of these attempts to stabilize the
shoreline are far from benign. Degradation and even complete loss
of the all important recreational beach sometimes results from
seawall emplacement. Increasingly, the choice of shoreline
stabilization approach will depend upon plans for future response
to rising seas which in many cases may involve retreat from the
shoreline rather than holding the line. This book explores, through
a series of case studies from around the globe, the pitfalls of
shoreline stabilization and provides a ready reference for those
with an interest in shoreline management. It is particularly timely
in a time of global change.
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The Last Beach (Hardcover)
Orrin H. Pilkey, J Andrew G Cooper
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R2,535
R2,224
Discovery Miles 22 240
Save R311 (12%)
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Ships in 12 - 17 working days
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"The Last Beach" is an urgent call to save the world's beaches
while there is still time. The geologists Orrin H. Pilkey and J.
Andrew G. Cooper sound the alarm in this frank assessment of our
current relationship with beaches and the grim future if we do not
change the way we understand and treat our irreplaceable shores.
Combining case studies and anecdotes from around the world, they
argue that many of the world's developed beaches, including some in
Florida and Spain, are all but doomed and that we must act
immediately to save imperiled beaches.
After explaining beaches as dynamic ecosystems, Pilkey and Cooper
assess the harm done by dense oceanfront development accompanied by
the construction of massive seawalls to protect new buildings from
a shoreline that encroaches as sea levels rise. They discuss the
toll taken by sand mining, trash that washes up on beaches, and
pollution, which has contaminated not only the water but also,
surprisingly, the sand. Acknowledging the challenge of reconciling
our actions with our love of beaches, the geologists offer
suggestions for reversing course, insisting that given the space,
beaches can take care of themselves and provide us with multiple
benefits.
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