Rising sea levels threaten septic systems in the South

Rising sea levels are causing septic system failures in South Florida, posing significant health and environmental risks.

Brady Dennis, Kevin Crowe, and John Muyskens report for The Washington Post.


In short:

  • Flooding and malfunctioning septic systems are common in Miami neighborhoods, contaminating waterways with untreated sewage.
  • Sea levels in the South have risen significantly, pushing groundwater higher and compromising septic system functionality.
  • Miami-Dade County is investing heavily to replace septic systems with municipal sewer connections, a costly and extensive project.

Key quote:

“These are ticking time bombs under the ground that, when they fail, will pollute.”

— Andrew Wunderley, executive director of the nonprofit Charleston Waterkeeper

Why this matters:

Septic systems, which manage waste from homes and businesses not connected to centralized sewer systems, are designed to treat and disperse wastewater safely into the ground. However, with the water table rising due to climate change, these systems are increasingly unable to function properly. When groundwater levels rise, they can inundate the drain fields of septic systems, causing untreated or partially treated sewage to back up into homes or, worse, leach into the environment.

Be sure to read: What happens when you flush?

An aerial view of a home that has been damaged by a hurricane

Feds increasingly leave local governments hanging when climate disasters hit, report finds

The U.S. federal government is increasingly failing to provide local communities assistance after climate change fueled disasters.

A view of a farm field being harvested by two farm tractors

Interactive map predicts climate-driven farm decline by end of century

A team in Barcelona has developed a platform that forecasts how much farmland will lose productivity to climate change by 2100.

A view of a lake with billowing wildfire smoke in the background

Opinion: Why Oregon needs a strong Climate Protection Program

Sky-high energy bills. Record-breaking wildfires. Air too toxic to breathe. Oregonians are already paying the price for pollution from large corporations, which is fueling climate disasters and extreme weather.

Modern, aesthetic and efficient dark solar panel panels, a modular battery energy storage system and a wind turbine system in warm light. 3D rendering.
Credit: Malp/BigStock Photo ID: 283558765

Google buys power from record-busting solar-battery site in Arkansas

Developer Cypress Creek has broken ground on the project, which will eventually deliver 2.5 gigawatts of solar production and 2.9 gigawatt-hours of battery storage.

Home electricity scheme with battery energy storage system power modern house at night. photovoltaic solar panels and rechargeable li-ion backup. Electric car charging on renewable off-grid system.
Credit: petovarga/BigStock Photo ID: 456853035

Microgrids use renewable energy to bolster Western NC resilience

Mobile Beehive Microgrids being set up across NC mountains as rebuilding after Helene continues, could play key role in future outages.
From our Newsroom
Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

One facility has emitted cancer-causing chemicals into waterways at levels up to 520% higher than legal limits.

Regulators are underestimating health impacts from air pollution: Study

Regulators are underestimating health impacts from air pollution: Study

"The reality is, we are not exposed to one chemical at a time.”

Pennsylvania governor Josh Shapiro speaks with the state flag and American flag behind him.

Two years into his term, has Gov. Shapiro kept his promises to regulate Pennsylvania’s fracking industry?

A new report assesses the administration’s progress and makes new recommendations

silhouette of people holding hands by a lake at sunset

An open letter from EPA staff to the American public

“We cannot stand by and allow this to happen. We need to hold this administration accountable.”

wildfire retardants being sprayed by plane

New evidence links heavy metal pollution with wildfire retardants

“The chemical black box” that blankets wildfire-impacted areas is increasingly under scrutiny.

Stay informed: sign up for The Daily Climate newsletter
Top news on climate impacts, solutions, politics, drivers. Delivered to your inbox week days.