Risks emerging from climate change for phenology are uncertain, given asynchrony between species, taxa and trophic responses  and the complexity of phenological events and their cues  . Spring events may continue to occur earlier , but reduced chilling may decrease this temporal shift . Projections for autumn are mixed, with continuing delays  or earlier onset of leaf senescence , but reduced chilling may also decrease these developments . Advancement, combined with longer autumn growth, may extend the growing season of trees by two days per decade in SEU . Warming to >3ºC GWL will impact forest planning in NEU .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report