North Carolina's Ghost Forests Are Vanishing Faster Than Ever

Walk the low-lying shoreline of eastern North Carolina and you will see them: stands of bleached, leafless trunks rising out of brackish water where a living forest used to be. Ecologists call these places ghost forests, and a new study finds the coastal woodlands behind them are disappearing faster than ever. Researchers at North Carolina State University tracked more than three decades of satellite imagery and found that the state lost roughly 21 percent of its coastal forest between 1985 and 2021, and the pace of loss accelerated sharply after 2010. According to the university's newsroom, the work is the most detailed reconstruction yet of how rising seas are converting living forest into standing dead timber, then into marsh.

The headline figure covers the whole coast, but the speed is what startled the researchers. Between 1985 and 2010, about 16,968 hectares of forest were converted to marsh, ghost forests or shrub. Between 2010 and 2021, the figure jumped to 23,876 hectares, one and a half times more damage in less than half the time. The most haunting symptom of the decline intensified even faster: newly killed stands spread at two and a half times the rate seen in the earlier decades. As reported by ScienMag, the team trained artificial intelligence models on decades of satellite imagery to separate healthy forest from marsh, shrub thickets and the pale signatures of dead trees, building a year-by-year map of the retreat.

What ghost forests are, and why salt kills

Ghost forests form when saltwater creeps into soil that freshwater trees depend on. The trees die standing, stripped of leaves and bleached by the sun, while salt-tolerant shrubs and grasses move in around their trunks. Eventually even the shrubs give way to open marsh or water. The study, published in mid-September 2026 in the journal PLOS One, identified rising sea level as the chief driver: as the ocean pushes inland, salty water saturates the roots of salt-intolerant trees and raises soil salinity past what they can survive.

Geography concentrates the damage. The hardest-hit areas sat within one kilometer of the coast, where channels let tides and storm surges reach far inland. The researchers describe the change as a one-way ecological ratchet: healthy forests become ghost forests, and ghost forests become marsh, and each stage is harder to reverse than the last. Proximity to tidal channels, rising salinity and the quickening pace of sea level rise emerged as the key drivers of which forests fell first, giving conservation planners a spatial template for predicting which remaining stands are most vulnerable.

Extreme weather did not cause the creep of salt, but it slammed the door behind it. The region endured a severe drought from 2007 to 2011, followed by Hurricane Irene later that year, and lead researcher Titilayo Tajudeen said some of the affected areas simply never recovered. The combination of extreme events and rising seas pushed even formally protected lands into new ecological states, according to the university, and Tajudeen noted that the disturbance events can permanently tip vulnerable forests over the edge. The lesson for coastal managers is sobering: a conservation designation on a map means little when drought, storm surge and salt are rewriting the land underneath it.

AI learned to spot ghost forests from orbit

Measuring that tipping point took new machinery. The team fed two satellite archives, one American with a deep historical record and one European with sharper resolution, into a convolutional neural network, a class of artificial intelligence built to read grid-like pixel data. The model learned to distinguish intact forest from marsh, dead stands, shrub and farmland, and adding seasonal growth patterns and elevation data sharpened its accuracy on the hardest class to separate: the dead-timber signature itself. In a head-to-head test for 2021, when both archives had data, the sharper imagery scored 96.3 against 93.4 for the older one, while the older archive's long record enabled the full 36-year reconstruction.

That method matters beyond one peninsula. The Albemarle-Pamlico Peninsula was the study area, but ghost forests are appearing wherever flat, forested coastlines meet rising seas, from the Chesapeake Bay to the Gulf Coast. A quantified, replicable pipeline for mapping them gives scientists a way to forecast future change instead of just documenting past loss. The authors argue the same approach can pinpoint which coastal forests worldwide are approaching the same threshold, years before the trunks turn white.

What the vanishing coastline means for everyone else

For coastal communities, the findings redraw timelines. Forests that took centuries to establish are converting to marsh and open water within a few human generations, and the evidence that loss is still speeding up suggests the coming decades will bring further, faster change. Wetland forests also store large amounts of carbon, so their die-off can feed back into the warming that drowns them. Conservation groups now have a map that shows not only where bleached trunks already stand, but which forests are likely to join them next, a basis for deciding where to defend the line and where to accept the conversion.

The study also reframes what protection can do. Some of the forests that flipped to ghost forests were under formal protection, yet the combination of drought, storm surge and saltwater intrusion pushed them into new ecological states anyway. That finding echoes a wider pattern across the Atlantic coast: paper protections mean little when the water itself is changing. For readers watching from inland, the bleached trunks are less a photograph than a measurement, one more boundary between land and sea being redrawn in real time, hectare by hectare, year by year. If you want to follow more stories on how forests are coping with a changing planet, the Plants and Trees topic page collects the latest coverage, including a long-term study on how protecting the forest floor preserves soil carbon after logging.