They survived wildfires. But something else is killing Greece’s iconic fir forests

In the Peloponnese mountains, the usually hardy trees are turning brown even where fires haven't reached. Experts are raising the alarm on a complex crisis

In the southern Peloponnese, the Greek fir is a towering presence. The deep green, slow-growing conifers have long defined the region's high-altitude forests, thriving in the mountains and rocky soils. For generations they have been one of the country's hardier species, unusually capable of withstanding drought, insects and the wildfires that periodically sweep through Mediterranean ecosystems. These Greek forests have lived with fire for as long as anyone can remember.

So when Dimitrios Avtzis, a senior researcher at the Forest Research Institute (FRI) of Elgo-Dimitra, was dispatched to document the aftermath of a spring blaze in the region, nothing about the assignment seemed exceptional. He had walked into countless burnt landscapes, tracking the expected pockets of mortality, as well as the trees that survived their scorching.