Kathmandu | Ecosphere News
As extreme heatwaves become more frequent across many parts of the world, scientists are warning that prolonged periods of high temperatures may significantly weaken trees, increasing the likelihood of branches breaking or entire trees collapsing.
Recent scientific findings highlighted by international media indicate that intense heat and prolonged drought can place severe physiological stress on trees. High temperatures reduce the ability of trees to transport water and nutrients efficiently, while drying soils can damage root systems that anchor trees firmly in the ground. Although many affected trees may continue to appear healthy externally, they can suffer hidden internal damage that compromises their structural stability.
Researchers note that extended heat stress can also make wood more brittle, making branches more susceptible to snapping even in the absence of strong winds. Mature trees growing in urban environments may be particularly vulnerable because they often face additional stresses such as compacted soils, limited rooting space, and higher surface temperatures created by surrounding infrastructure.
Climate experts caution that as global temperatures continue to rise, extreme heat events are expected to become more frequent and intense. This trend could increase risks to public safety, urban infrastructure, biodiversity, and ecosystem services provided by trees.
Environmental specialists emphasize the importance of regular tree health assessments, especially following prolonged heatwaves. Monitoring signs such as premature leaf fall, wilting foliage, dead branches, or visible cracks can help identify trees requiring professional inspection or management before they pose safety hazards.
The findings also reinforce the broader need for climate adaptation strategies, including improved urban forest management, protection of healthy tree cover, and the selection of climate-resilient species capable of withstanding increasingly extreme weather conditions.
Source: Analysis based on recent international reporting and scientific findings on the impacts of extreme heat on tree health.
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