England's Ancient Oaks Dying in Extreme Heat
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- The Woodland Trust says England's ancient and veteran oak trees are being disproportionately affected by this summer's heat and drought, with many showing "early autumn" — wilting and shedding leaves early as their water-transport systems fail under stress.
- The Major Oak, one of Europe's oldest and most celebrated ancient trees, died in June, with Ed Pyne of the Woodland Trust naming extreme weather as the main cause.
- Sherwood Forest lost eight ancient oak trees across 2024 and 2025, and the Woodland Trust has identified seven ancient oaks in England and Wales now in critical condition, including the Crow Leasow oak in Shropshire and the Tea Party oak in Suffolk.
- Ed Pyne estimates half of England's ancient oaks could be lost over the next 60 years and warns the figure is a significant underestimate because his mortality analysis did not account for accelerating climate change.
- Beech trees are also struggling with the heat, according to John Parker of the Arboricultural Association, who said they "may die, which would be disastrous for us."
- The European Forest Institute's Alexander Held said even drought-tolerant pine trees are dying across Europe, warning that ecosystems cannot keep pace with the speed of climate change.
- Trees UK of Bromley is fielding rising calls about "limb failure" during hot, dry spells as trees' vascular systems absorb less moisture and limbs become brittle.
Why it matters: England holds roughly 3,300 ancient oaks over 6 metres in circumference and only 114 over 9 metres — a small, centuries-old population that cannot regenerate fast enough to replace itself if drought losses continue compounding. The death of the Major Oak in June shows the threat is already producing iconic casualties, and Pyne's 50%-loss projection explicitly excludes climate acceleration, meaning the real figure could be far worse.
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