Beach Erosion
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Beach Erosion

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Questions and Answers

Which percentage of sandy coastlines in America experience erosion?

  • 50 to 60 percent
  • 30 to 40 percent
  • 80 to 90 percent (correct)
  • 10 to 20 percent
  • What happens to a beach when erosion occurs?

  • It becomes rockier
  • It becomes narrower and lower (correct)
  • It becomes steeper
  • It becomes wider
  • What is the driving factor for beaches that generate tourism?

  • Seawalls
  • Revenue gained
  • Lots of sand (correct)
  • Coastal engineers
  • What is the process called that coastal engineers use to counter the natural loss of sand?

    <p>Beach nourishment</p> Signup and view all the answers

    What is the main method used in beach nourishment?

    <p>Dredging</p> Signup and view all the answers

    What happened to the beach in Miami in the 1970s?

    <p>It became narrower</p> Signup and view all the answers

    How was the beach in Miami re-emerged in the 1980s?

    <p>Through dredging</p> Signup and view all the answers

    Which strategy is primarily used in the United States to protect coastal properties from erosion?

    <p>Beach nourishment</p> Signup and view all the answers

    How often, on average, do nourishments need to be repeated?

    <p>Every 2 to 8 years</p> Signup and view all the answers

    What percentage of the cost for nourishments is paid by the federal government?

    <p>65%</p> Signup and view all the answers

    Which group approves and designs nourishments?

    <p>The Army Corps of Engineers</p> Signup and view all the answers

    Why do poorer communities often not receive nourishments?

    <p>Lack of funds</p> Signup and view all the answers

    What is one potential negative consequence of beach nourishment?

    <p>Excessive development</p> Signup and view all the answers

    What is the potential impact of building more property in areas with nourished beaches?

    <p>Increased coastal hazards</p> Signup and view all the answers

    What is the main reason why beach nourishment is appealing?

    <p>Economic benefits</p> Signup and view all the answers

    Beach nourishment is the main strategy used to protect coastal properties from risky ______.

    <p>erosion</p> Signup and view all the answers

    The funding for these projects gets a little wonky, but here's what's important: The federal government pays for a lot of these ______.

    <p>nourishments</p> Signup and view all the answers

    The Army Corps of Engineers — the group that approves and designs ______ —prioritizes defending some beaches over others, based on the potential loss of value.

    <p>nourishments</p> Signup and view all the answers

    According to ProPublica, the Corps only funds ______ where the expected benefit is 2 and a half times as high as the cost.

    <p>nourishments</p> Signup and view all the answers

    According to research published by the American Geophysical Union, there is a feedback loop. [Blank] tends to happen along beaches that generally have expansive properties and they also seem to drive development along the same shores, despite the risk of future erosion.

    <p>nourishment</p> Signup and view all the answers

    True or false: Beach nourishment is the primary strategy used to protect coastal properties from erosion in the United States?

    <p>True</p> Signup and view all the answers

    True or false: The federal government pays for up to 65% of the cost of nourishment projects?

    <p>True</p> Signup and view all the answers

    True or false: Nourishments need to be repeated every 2 to 8 years, on average?

    <p>True</p> Signup and view all the answers

    True or false: Research has found that areas with nourished beaches tend to have homes that are about three times bigger than non-nourished ones?

    <p>True</p> Signup and view all the answers

    True or false: Beach nourishment may actually mask or reduce the impact of coastal hazards without changing the natural processes that drive them?

    <p>True</p> Signup and view all the answers

    Study Notes

    Erosion and Its Impact

    • Approx. 70% of sandy coastlines in America experience erosion.
    • Erosion leads to loss of beach area, affecting marine ecosystems and coastal properties.

    Tourism and Beach Dynamics

    • Beaches that generate tourism are primarily driven by recreational appeal, natural beauty, and accessibility.
    • Erosion can deter tourists, impacting local economies reliant on beach activities.

    Coastal Engineering and Sand Loss

    • Coastal engineers employ beach nourishment to counteract natural sand loss.
    • Beach nourishment involves adding sand to eroded beaches to rebuild them.

    Historical Context of Miami Beach

    • In the 1970s, Miami beach dramatically lost sand, affecting its viability for tourism.
    • The beach was revitalized in the 1980s through extensive nourishment projects.

    U.S. Coastal Protection Strategies

    • Beach nourishment is the primary strategy used for protecting coastal properties from erosion.
    • Nourishments typically need to be repeated every 2 to 8 years, on average.

    Funding Aspects

    • The federal government covers approximately 65% of the nourishment costs.
    • The Army Corps of Engineers designs and approves these nourishment projects, prioritizing beaches based on potential loss of property value.

    Community Equity and Nourishment

    • Poorer communities often miss out on nourishment benefits due to funding priorities and economic disparities.
    • A negative consequence of beach nourishment may include increased development pressure in vulnerable areas.

    Development and Erosion Feedback Loops

    • Expansive properties along nourished beaches can lead to a feedback loop, driving further development despite erosion risks.
    • Beach nourishment is appealing primarily for its ability to maintain property values and tourism attractiveness.

    Key True/False Statements

    • True: Beach nourishment is the primary strategy used to protect coastal properties from erosion in the United States.
    • True: The federal government pays for up to 65% of the cost of nourishment projects.
    • True: Nourishments need to be repeated every 2 to 8 years, on average.
    • True: Research indicates that areas with nourished beaches typically have homes about three times larger than those in non-nourished areas.
    • True: Beach nourishment may mask or reduce the immediate impacts of coastal hazards without altering underlying natural erosion processes.

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    Description

    Test your knowledge on beach erosion and learn about the measures taken by the government to combat this widespread issue. Explore the causes, impacts, and solutions of beach erosion in this informative quiz.

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