The sands of time

Posted In Beach Nourishment, Inform
Dec
15

waikiki-beach-renourishment
Waikiki beach-renourishement, 2012. Photograph: © SAF — Coastal Care.
“Hawaii’s famed Waikiki Beach started to erode again, less than a year after the completion of a $2.2 million project to replenish the sand on about 1,730 feet of shoreline that had been suffering from chronic erosion.”Captions.
“Development is absolutely responsible for the majority of the beach nourishment,” Andrew Coburn, assistant director of The Program for the Study of Developed Shorelines at Western Carolina University, said. “Well over 99 percent of the shorelines that are nourished are developed so there is some economic value placed behind them.”

Excerpts;

Human intervention (to control beach depth) is often futile. Repeated studies have found that sand pumped onto beaches in order to protect coastal property may be washed out by a storm or two. These beaches commonly lose all the new sand in five years or so…

Read Full Article, The New York Times (12-15-2017)

Sand washes away as quickly as it can be dumped, Bathtub Beach, FL; TCPalm News (11-17-2017)

Coastal geologist criticizes beach renourishment efforts; By Robert S. Young, PhD; The State (08-17-2016)
Rob Young, who heads the Program for the Study of Developed Shorelines at Western Carolina University, said the government is subsidizing coastal development with renourishment money – and that’s costing taxpayers. Communities across the country have spent millions of dollars renourishing beaches. Those efforts encourage people to rebuild after every major hurricane…

Beach replenishment may have far reaching impacts on ecosystems;” Phys.Org (03-29-2016)
UC San Diego biologists who examined the biological impact of replenishing eroded beaches with offshore sand found that such beach replenishment efforts could have long-term negative impacts on coastal ecosystems…

Sand, Rarer Than One Thinks: A UNEP report (GEA-March 2014)
Despite the colossal quantities of sand and gravel being used, our increasing dependence on them and the significant impact that their extraction has on the environment, this issue has been mostly ignored by policy makers and remains largely unknown by the general public.
In March 2014 The United Nations released its first Report about sand mining. “Sand Wars” film documentary by Denis Delestrac – first broadcasted on the european Arte Channel, May 28th, 2013, where it became the highest rated documentary for 2013 – expressly inspired the United Nations Environment Programme (UNEP) to publish this 2014-Global Environmental Alert.

Lessons From The Sand ; By Charles O. Pilkey and Orrin H. Pilkey (©-2016)
Featuring more than forty fun hands-on activities for families with children, “Lessons from the Sand” reveals the science behind the amazing natural wonders found on beaches and the activities explain how beaches work — providing the key to protecting them for future generations. A book by Charles O. Pilkey and Orrin H. Pilkey…

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The World's Beaches
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