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Showing posts from September, 2026

Ozone Depletion and the Changing Face of Disaster Risk

A geographer's view on stratospheric change, atmospheric hazards, and lessons from the 2026 Nepal floods  Most of us encounter the ozone layer only as a distant fact from a school textbook — a thin shield some 15 to 35 kilometres above our heads that quietly absorbs the sun's harshest ultraviolet rays. It rarely makes headlines the way an earthquake or a flood does. Yet the story of ozone depletion is, at its core, a story about disaster: about what happens when an invisible protective layer thins, and how that thinning ripples outward into human health, agriculture, ecosystems, and — as recent Himalayan events suggest — the wider architecture of atmospheric and cryospheric hazards that geographers now have to reckon with. This piece tries to do two things. First, to explain, in plain terms, what ozone depletion actually is and why it still matters four decades after the Antarctic "ozone hole" was first identified. Second, to place it honestly within the broader disas...