The Milky Way as a Template to Feedback Driven Galactic Ecosystems

Galaxies are dynamic ecosystems where matter and energy cycle through various phases, maintaining a stable yet non-equilibrium state. This balance is governed by the interaction between stars and the interstellar medium, where the rate and efficiency of star formation are influenced by feedback processes such as stellar winds, supernovae, spiral arm instabilities, and Galactic shear. As our home galaxy, the Milky Way provides an exceptional opportunity to study these mechanisms in detail, with high sensitivity and sub-parsec resolution. Its proximity allows us to examine how local feedback from star formation impacts the surrounding medium and, in turn, drives large-scale Galactic evolution. Using a multiscale and multiwavelength approach, this presentation addresses how feedback processes from individual stars to Galactic structures shape the physical and chemical environment of the Milky Way. In this context, the Milky Way becomes a key reference point for investigating the evolution of galaxies in diverse environments.