Spring Definition Season

Spring is a complex, multi-scalar season defined by astronomical markers and manifested through climate-driven biological processes. Its timing and character vary regionally and are shifting under climate change, with cascading ecological, agricultural, and cultural impacts.

Because global climates vary so much, experts use three different methods to "start" the season: Astronomical Spring : Defined by the Earth's position relative to the sun. : It begins on the Vernal Equinox spring definition season

: Approximately March 20/21 to June 21/22. Spring is a complex, multi-scalar season defined by