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Story summary
- A Lancet Public Health report finds climate change extends Europe's birch, alder, and olive flowering, with pollination starting one to two weeks earlier than in the 1990s.
- Professor Joacim Rocklov of the University of Heidelberg calls for research on pollen levels and hay fever severity.
- In the United Kingdom, warm weather creates birch pollen conditions described as a "pollen bomb," potentially affecting millions with hay fever and asthma risk.
