A 1,200-year dataset shows the ‘peak bloom’ is arriving earlier. Global heating is unsettling nature’s rhythms – and their cultural meaning A 1,200-year dataset shows the ‘peak bloom’ is arriving earlier. Global heating is unsettling nature’s rhythms – and their cultural meaning A picture posted on social media last April by Prof Yasuyuki Aono of a spreadsheet, with its blank row for 2026, carries a quiet poignancy. Prof Aono died before he got to fill in this year’s entry for when the cherry