Fig. 2: Three categories of pollen emission changes.
a–c Conceptual schematic for three categories of pollen emission changes, comparing the historical (black) and future (colors) daily pollen emission. Blues lines indicate the future pollen emission change with only temperature-dependent phenology. Pink and purple curves represent future pollen emission change with phenology change and temperature-dependent changes in the annual production factor (pfannual), which can increase (pink) or decrease (purple) production.
