Japan reforested with Japanese cedar (sugi) and cypress (hinoki) in the 1950s to rebuild post-war forests. Now the pollen gives 40%+ of its population hay fever. Climate change extends pollen seasons further. Today’s decisions shape tomorrow’s reality. Short-term fixes can become long-term crises.
[Japan is gripped by mass aller...](https://www.bbc.co.uk/future/article/20260515-the-1950s-blunder-which-causes-mass-hay-fever-in-japan )
David Ho
npub1ps…rzham
2026-06-09 08:10:25 UTC
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npub1psvtnwsuqj4tx4dnqdf4044ed2p7dzwqcc27250267z4pew9ah2qhrzhamSeen on
wss://relay.momostr.pinkPublished at
2026-06-09 08:10:25 UTCEvent JSON
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