Short Wave

What Happens When The Tides Get Higher

Apr 13, 2021
Astrid Caldas, a senior climate scientist at the Union of Concerned Scientists, sheds light on the urgent issue of rising sea levels and chronic flooding threatening coastal communities. She discusses alarming statistics revealing which areas are most at risk, including the Florida Keys and parts of Louisiana. Astrid emphasizes the importance of adaptive strategies cities must implement, such as protection and accommodation. The conversation also touches on public awareness of climate change and the need for immediate action to combat its growing impacts.
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INSIGHT

Chronic Inundation

  • Higher sea levels mean higher high tides, increasing flood risk.
  • These tides flood areas previously unaffected, riding on elevated sea levels.
INSIGHT

Defining Chronic Inundation

  • Chronic inundation is defined as at least 10% of usable land flooded 26+ times yearly.
  • This equates to roughly the two highest tides each month impacting communities.
ANECDOTE

Impact on Houma Tribe

  • In Louisiana bayous, saltwater intrusion is impacting the Houma tribe's way of life.
  • Alligators are disappearing, trees are dying, and traditional practices are changing.
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