Climate Adaptation: Is Miami Indefensible?

NPR host Jacki Lyden introduces the "cover story today: climate change and drowning cities, learning to live with rising seas." The 11-1/2 minute report is available as text, podcast and streaming audio.

Mayor Michael Bloomberg's "ambitious 20-year plan that includes seawalls....and flood control structures in the city streets" puts New York City in a class by itself in preparation, states Lyden's guest, science and nature writer Tim Folger. "But will it be enough?", he asks.

On the other extreme - not because it isn't preparing for sea level but because it may have the most to lose and the most difficult to defend, is Miami. Lyden states that "(i)f sea levels rise three feet (by mid-century) as is projected, the entire city of Miami will be uninhabitable". She asks Folger to explain why Miami will be so difficult to defend from rising sea level.

(T)he biggest challenge for Miami and all of Southern Florida, really, is that the sorts of solutions that work in New York and in the Netherlands and perhaps even in Ho Chi Minh City [which has a contract with the Dutch to try to protect that city from sea level rise, he explained earlier] won't work in Miami because Miami and most of Southern Florida rests on this foundation of really highly porous limestone. It's just like this honeycomb or like petrified Swiss cheese. It's extremely porous. And so building a barrier won't really work because the water will just continue to flow beneath that barrier.