Rising Seas Could Speed Up Loss of Florida Mangroves, Study Finds

[bronxiteforever]

WJCT Public Media
By JENNY STALETOVICH
August14, 2019

Four thousand years ago, rising seas decimated huge swaths of mangroves in Florida Bay.
Today, seas rising at a far greater rate, combined with increasing storms and drought, could lead to another catastrophic loss of mangroves that help keep the state from sliding into the sea, according to a new study published by the U.S. Geological Survey in the journal Nature Communications. This was surprising because mangroves are thought to be relatively resilient to sea level rise," said Miriam Jone, a USGS geologist and lead author for the study.

Mangroves serve as a critical link between the land and sea, helping to stabilize the coastline while protecting it against violent storm surges generated by hurricanes. Mangrove forests also suck up tons of carbon from the atmosphere, providing a carbon sink for the state valued at between $2 billion and $3.4 billion.

But scientists fear they are coming under increasing threat, from both development and impacts from climate change. About half the planet's mangroves have disappeared. After Hurricane Irma, NASA researchers during aerial surveys discovered about 40 percent of mangroves in Everglades National Park had been damaged. Mangroves have evolved to withstand hurricanes, so they expected them to bounce back. But when they returned three months later, they were suprised to find how little of the forest had recovered.

In the Caribbean, mangroves have fared better where ecoystems were healthier... "We know that mangroves can be resilient under high rates of sea level rise, but it also depends on how healthy the ecosystem is," Jones said.


More here
https://news.wjct.org/post/rising-seas-could-speed-loss-florida-mangroves-study-finds

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1. Rising Seas Could Speed Up Loss of Florida

[bronxiteforever]

2. true and the fixes, if they work, are expensive.

No state will be more financially stressed by the impacts of invading seas than Florida.
That is according to a new study released this summer on the costs of sea level rise adaptation.
“Just for seawalls alone across the country, it’s $400 billion over the next 15 years,” David McDougal of the Miami Climate Alliance said. “For Florida alone, it’s $76 billion.”

https://www.nbcmiami.com/news/local/The-Soaring-Cost-of-Rising-Seas-537483291.html

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3. Even with seawalls, saltwater incursion will make it difficult to live there

Once the groundwater gets salty enough, it might become infeasible for millions of people to stay. So you could probably add the cost of enough desalination plants to supply everyone in Miami with fresh water to that bill.

[bronxiteforever]

4. Had not thought about the fresh water. That is not good.

Not good at all.
I don’t even know how expensive desalination plants are but I am sure these are very expensive.