In Greece’s southern Peloponnese mountains, vast areas of Greek fir forest are turning brown and dying – even where wildfires never reached. Researchers say the damage signals a deeper ecological crisis driven by climate change.
Greek firs have long been among the country’s toughest trees, adapted to drought, poor soils and periodic fires. But when forest researcher Dimitrios Avtzis surveyed a recent burn area, he found something alarming: large swathes of dead and dying trees well beyond the fire’s edge. The scale was unprecedented, prompting an urgent alert to the environment ministry.
Experts say multiple climate-related pressures are converging. Prolonged drought has weakened trees, while declining winter snowfall has reduced vital slow-release moisture. As a result, stressed firs have become vulnerable to bark beetles, which bore under the bark and disrupt water and nutrient flow. Once outbreaks take hold, they are extremely hard to control.
Similar beetle-driven forest die-offs are being reported elsewhere in southern Europe, suggesting the problem is not unique to Greece but part of a wider shift in forest ecosystems under climate breakdown.
There is some cautious optimism. Mediterranean forests can regenerate after fires, but recovery is slow and uneven, often taking several years. Scientists stress that urgent action is needed, including funding for forest management and monitoring, to prevent further losses.
“We have the knowledge and the tools,” Avtzis says. “What matters now is whether we act – because this will only become more frequent and more intense.”
