Florida
NASA images reveal “ghost forests” in Florida

NASA and U.S. Geological Survey (USGS) satellite images have unveiled a concerning phenomenon in Florida: the emergence of “ghost forests” in the state’s mangrove ecosystems.
These watery graveyards of once-thriving trees are a product of mangrove forests’ increasing vulnerability to intensifying storms and environmental change.
Mangroves are vital to the Florida Everglades. Known for their picturesque, half-submerged roots that create natural tunnels for kayakers, these trees also serve essential ecological and environmental functions.
Mangroves stabilize coastlines, buffer against erosion, store carbon and provide critical shelter for marine life.
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Florida is estimated to have 600,000 acres of mangrove forests, though their distribution has changed in recent decades mostly as a consequence of human activity, according to the state’s Department of Environmental Protection.
Although mangroves are renowned for their resilience, including their ability to withstand flooding, the recent findings published in the journal Remote Sensing of Environment revealed that stronger and more frequent hurricanes are overwhelming this natural adaptability.
Using decades of Landsat satellite data spanning from 1999 to 2023, researchers identified troubling patterns in mangrove recovery following hurricanes. Unlike previous studies that typically focused on single events, this study paints a broader picture of how these forests respond to storms over time.
The team categorized mangrove conditions into four groups: healthy (unaffected by storms), disturbed (impacted by storms but recovered within a single growing season), recovering (requiring more than one season to recover) and declining (failing to recover and entering long-term decline).
The aftermath of recent hurricanes revealed a sharp rise in the number of declining mangroves. These forests, unable to recover, often transition into “ghost forests,” where dead trees haunt the once bustling coastline.
“Our monitoring has shown a significant increase in the area of mangroves that have lost their natural recovery capacity following recent hurricanes, such as Irma in 2017 and Ian in 2022,” Zhe Zhu, a co-author of the study and a former member of the USGS–NASA Landsat science team said in a statement.
The Landsat-based maps from the study showed clear contrasts between mangrove recovery after hurricanes Wilma (2005) and Irma (2017) in the southern Everglades National Park bordering the Gulf of Mexico.
Lauren Dauphin, using data from Yang, Xiucheng, et al. 2024/NASA Earth Observatory
While most mangroves recovered naturally after Wilma, a significant portion of mangroves impacted by Irma entered a long-term decline, turning into ghost forests.
“Comparing post-hurricane conditions in Florida revealed that the increased frequency and severity of disturbances are challenging mangrove resilience, potentially diminishing their ability to recover and sustain ecosystem functions,” the researchers wrote in the study.
A key innovation of this study was the use of a machine-learning algorithm to analyze satellite data, enabling continuous and detailed tracking of mangrove conditions. This approach provides an early warning system, helping land managers identify areas at risk before losses become irreversible.
“Our research aims to provide an early warning system for mangrove decline, helping to identify areas at risk before irreversible loss occurs,” Zhu said.
The researchers plan to refine their algorithm to better differentiate between the drivers of mangrove change, such as extreme weather, rising sea levels or human activity. They also aim to expand the study to monitor mangroves globally.
“By identifying whether changes are driven by extreme weather events, rising sea levels, or human activities, we can provide more targeted insights for conservation and management strategies in a rapidly changing environment,” Zhu said.
Do you have a tip on a science story that Newsweek should be covering? Do you have a question about comets? Let us know via science@newsweek.com.
Reference
Yang, X., Zhu, Z., Kroeger, K. D., Qiu, S., Covington, S., Conrad, J. R., & Zhu, Z. (2024). Tracking mangrove condition changes using dense Landsat time series. Remote Sensing of Environment, 315, 114461. https://doi.org/10.1016/j.rse.2024.114461

Florida
Florida map shows counties at risk of “critical” fire weather today

Dozens of counties across Central and South Florida were on alert for fire weather conditions on Thursday, the National Weather Service (NWS) warning that a combination of strong winds and low relative humidity could contribute to extreme fire behavior in the Sunshine State.
Why It Matters
A red flag warning is issued by the NWS to notify local fire officials of potentially hazardous weather conditions expected within the next 12 to 24 hours. Wildfires have hit California and the Carolinas so far this year.
What To Know
As of Thursday morning, red flag warnings had been issued across central and east central Florida. The map below shows where Red flag warnings and fire weather watches were in place in Florida from Thursday morning.
Counties included:
- Brevard
- Charlotte
- DeSoto
- Flagler
- Hardee
- Highlands
- Indian River
- Lake
- Lee
- Levy
- Marion
- Martin
- Okeechobee
- Orange
- Osceola
- Polk
- Putnam
- Seminole
- St. Lucie
- Sumter
- Volusia
Winds near 20 mph were expected, gusting to around 30 mph, along with relative humidity between 25 and 35 percent, according to the NWS.
“Any fires that develop will likely spread rapidly,” it warned.
Meanwhile, there were fire weather watches in place across South Florida.
These included Broward, Collier, Glades, Hendry, Miami-Dade, Monroe, and Palm Beach Counties.
Here, the service said drought conditions combined with low relative humidity values would lead to “increased fire weather concerns.”
Residents in affected areas were urged to avoid any outdoor burning.
The NWS issues fire weather watches up to 72 hours before the conditions are expected to occur, while a red flag warning “is issued when the conditions are expected to occur within the next 24 hours.”
What People Are Saying
The NWS red flag warnings stated: “A Red Flag Warning means that critical fire weather conditions are either occurring now … or will shortly. A combination of strong winds … low relative humidity … and warm temperatures can contribute to extreme fire behavior.”
NWS Jacksonville said on X: “Despite a little rain yesterday, drought conditions will combine with low humidity and gusty winds, creating optimal conditions for rapid wildfire spread across central FL today.”
Meteorologist Brooke Silverang said on X, Wednesday: “All of Florida’s East Coast is under a Fire Weather Watch on Thursday. Fires can spread easily.”
What Happens Next
At the time of writing, the latest red flag warnings were in place until 6 p.m. The NWS said the fire weather watch for South Florida was in effect through Thursday evening.
Florida
Todd Golden explains how Florida beat Alabama and Auburn on the road in same season

Todd Golden’s Florida basketball team has owned the state of Alabama this season. It started out with a Feb. 8 trip to Auburn, a game the Gators won 90-81.
Then, just over a month later, Florida beat Alabama 99-94. On Wednesday, after the win, Golden was asked what his team did to become so successful on the road.
“I think it’s the strength of our team,” Golden said. “We have a very mature team, workmanlike approach. We’re very consistent and for whatever reason, I feel like we really hone in and do a great job of preparing on the road and making sure we come in with a great mentality.”
The Gators beat the Crimson Tide mostly off the strength on the glass. Golden’s squad outrebounded Alabama 50-35, grabbing 16 offensive boards, which it turned into 19 second-chance points.
Florida also won in transition, scoring 22 fast-break points to Alabama’s 10. The Gators fought off several UA comeback attempts to move to 26-4 on the season, 13-4 in SEC play.
“You’re gonna have to deal with some highs and lowes and you can’t allow your emotions to affect you negatively,” Golden said. “And I thought we did a great job doing that. But I think we’re one of the best teams in America, and to do that, you have to go on the road and beat good teams, and we did that with Auburn and we did that again tonight with Alabama.”
The Gators will be the No. 2 seed in the SEC Tournament, which begins next Wednesday in Nashville. Auburn already earned the league’s regular season championship, while Alabama backed into clinching a double-bye on Wednesday, when Missouri lost at Oklahoma.
Florida will close out the regular season against Ole Miss in Gainesville on Saturday. Alabama and Auburn will face off in Neville Arena that same day, tipping off at 1:30 p.m. CT on ESPN.
Florida
Judge sentences Florida dentist accused of ‘campaign of terror’

TAMPA, Fla. – A federal judge sentenced a Florida dentist to two years in prison with credit for time served after his arrest in June.
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FBI agents reported Richard Kantwill sent more than 100 threats to 40 victims in retaliation to their political commentary.
Kantwill, 61, wrote the threats of injury and death even after FBI special agents intervened and asked him to stop.
Attorney General Merrick B. Garland referred to Kantwill’s messages as an “almost year-long campaign of terror.”
Kantwill, who was born in Chicago, served as a U.S. Army combat field medic during the Gulf War and practiced dentistry in Tampa.
Kantwill’s attorneys claimed he lived with untreated post-traumatic stress disorder and alcoholism.
In November, Kantwill pleaded guilty to four counts of interstate transmission of a threat.
Prosecutors said Kantwill’s victims included an election official in another state, an author, a TV personality, and a religious leader.
On Tuesday, U.S. District Judge Mary Scriven sentenced Kantwill to two years in prison with credit for time served.
Kantwill has been in jail without bond for about eight months. He will be paroled for three years and will have to pay a $10,000 fine and get treatment for mental health and substance abuse.
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