#sea level rise
Mississippi River Delta Is In Jeopardy – Undoing Decades of Flood Protection Could Save It

Mississippi River Delta Is In Jeopardy – Undoing Decades of Flood Protection Could Save It

A new study released earlier this summer found that the “marshes in the Mississippi River delta have hit a tipping point.” While the study concluded we are past the tipping point, the lead author Torbjörn Törnqvist told Nola.com that this cannot paralyze us into inaction. One important step towards that would be to build on and execute Louisiana’s 2023 Coastal Master Plan, which builds on a previous plan of the same name.

Why This Matters: Coastal marshes are “among the most valuable ecosystems on the planet” due to their vital contributions to storm protection, nutrient cycling, and more.

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Millions More American Homes at Risk of Flooding than Previously Thought

Millions More American Homes at Risk of Flooding than Previously Thought

An alarming new analysis from the First Street Foundation revealed that millions of American homes are at a growing risk of extreme flooding. As CNN wrote, today, around 8.7 million properties are located in Special Flood Hazard Areas as determined by FEMA’s flood maps, the legal standard used in the US to manage floodplains, determine […]

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Feds Propose to Spend Billions to Build Walls To Shore Up Miami From Sea Level Rise

Feds Propose to Spend Billions to Build Walls To Shore Up Miami From Sea Level Rise

Just as Tropical Storm Cristobal prepared to make landfall in Louisiana, the Army Corps of Engineers (COE) released a plan on Saturday to spend nearly $5B to build miles of sea walls around parts of Miami that are vulnerable to storm surge and sea-level rise, local media there reported.

Why This Matters:  Similar studies by the Army Corps are going on all over the country — New York City, Norfolk, Virginia, and in the Florida Keys.  The feds abruptly pulled in February the COE’s plans for a sea wall for New York City without comment.

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Louisiana Marshes May Be A Goner Due To Expected Sea Level Rise

Louisiana Marshes May Be A Goner Due To Expected Sea Level Rise

A new study in the Journal of Science Advances concludes that the “drowning” of the roughly 15,000 square kilometers of remaining marshland in the Mississippi River Delta of Louisiana is “past the tipping point” and now “probably inevitable,” according to The Washington Post

Why This Matters:  Louisiana has already lost one-fourth of the land in the Delta at the beginning of the last century.

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What Winter? Climate Change Alters Weather and Ocean Circulation Patterns

What Winter? Climate Change Alters Weather and Ocean Circulation Patterns

We know this winter was a warm one in much of the U.S. — dozens of cities east of the Mississippi River experienced a “meteorological winter” that was among their top 10 warmest on record — because, according to climate scientists, the Arctic oscillation has been in an unusually strong and it kept the cold Arctic air trapped up north,

Why This Matters:  Some of the Earth’s major circulatory systems are being altered by climate change, and now we can prove it.  The changes to weather and to the distribution of species on land and in the ocean could be devastating.

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Interview of the Week: Author Jeffrey Peterson

Interview of the Week: Author Jeffrey Peterson

Jeffrey Peterson has more than 40 years of experience in environmental policy both on the Hill and at EPA.  He recently wrote a book entitled “A New Coast” about the need for policies to respond to devastating storms and rising seas. ODP:  What motivated you to write about coastal adaptation after your long career in […]

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Chile Makes Good On Its Promise of an Azul COP

Chile Makes Good On Its Promise of an Azul COP

One of the major ways that this year’s UN Climate meeting is greatly different from previous ones is its recognition of oceans as a major part of the climate problems (with support from the findings of the IPCC’s recent Oceans and Cryosphere report) and also its solutions. Chile’s Foreign Minister, Teodoro Ribera Neumann explained today that Chile elevated ocean issues because they are integral to both climate change and to his country.

Why This Matters:  The UN climate meetings in the past had failed to take oceans into account when looking at how to address climate change and that, frankly, was a major oversight.

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Extreme Weather Around the Globe: U.S. Freezing, Australia on Fire, Canada Melting

Extreme Weather Around the Globe: U.S. Freezing, Australia on Fire, Canada Melting

Australia’s most populous state, New South Wales, is being consumed by wildfires, with the city of Sydney at risk for the first time, and the government has declared a state of emergency in the region for the next week.  Meanwhile, here in the U.S., a massive arctic front has shifted south, bringing bone-chilling cold and snow to the middle of the country today, with more than 67 million Americans are under winter weather alerts and hundreds of cold temperature records could be broken.

Why This Matters:  This is more than just uncomfortable weather — it is dangerous.  This type of “catastrophic” wildfire risk has never happened before in New South Wales — and the public is being warned not to be dismissive — with officials explaining that these conditions mean that lives are at risk.  The same is true for bitter cold here — with snow from the Dakotas to New England over the course of the week, and it is not even mid-November.

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One Climate SOS Thing:  Floating A House Down the River Thames

One Climate SOS Thing: Floating A House Down the River Thames

The Extinction Rebellion launched another high profile protest, this time floating down the River Thames in London a “model” of a suburban home that is literally partially under water as a way to raise awareness about rising sea levels that will leave many homes under water.  The group said that, “[w]e are watching, in real-time, as […]

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Now That We Are Starting To Do It, Can We Get Adaptation Right?

Now That We Are Starting To Do It, Can We Get Adaptation Right?

A new study in the Journal of Ocean & Coastal Management concludes that decisions regarding which adaptation projects to put in place are not being made on the basis of what is most efficient and effective in the long run and that the poorest citizens are bearing the brunt of these mistakes, Bloomberg reports

Why This Matters:  Beach replenishment is preferable over hardening coastlines to protect them from the climate impacts we are already experiencing, but sometimes buyouts will be more cost-effective than repeatedly replenishing.   Doing adaptation the right way may be more expensive and may require difficult choices about how to be fair, and not simply undertake projects that disproportionately benefit the wealthy landowners and increase the vulnerability of poor and historically marginalized communities.

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A New Study Shows More Cities Globally Will Be Drowned By Sea Level Rise

A New Study Shows More Cities Globally Will Be Drowned By Sea Level Rise

New research using satellite positioning more accurately determines the elevation of numerous coastal cities — and as a result, previous estimates of the impacts of sea-level rise were far too optimistic and 150 million people are living in areas that will be below the high-tide line by 2050.  This assessment of the impacts on coastal cities is based on today’s population numbers, not counting future population growth or land lost to subsidence or coastal erosion so the actual numbers of people who will be displaced by sea-level rise globally will likely be even higher.

Why This Matters:  Too optimistic may be an understatement.  We must begin to adapt right now.  And physical barriers to sea-level rise can only go so far, particularly when they are based on “overly optimistic” estimates of how much and where the impacts of rising seas will be greatest.  

 

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Meeting the Challenge of Climate Change — One island, One Atoll, One Country at a Time

Meeting the Challenge of Climate Change — One island, One Atoll, One Country at a Time

By David W. Panuelo, President of the Federated States of Micronesia

This past week, world leaders gathered in Norway to focus on the health of our oceans at a critical time. For island nations such as the Federated States of Micronesia, threatened as never before by climate change, seriousness of purpose isn’t elective, it’s existential.

For me and for the country I am privileged to lead, the climate crisis is not abstract. It is not tomorrow’s far away challenge. We are just 1% dry land. Fly to Norway over the western Pacific and dotted below in the blue ocean are the more than 600 islands and islets that make up the Federated States of Micronesia.

For us, there is no climate and resilience plan without sustainable oceans at its heart.

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