Roselin Osser, a celebrated mezzo-soprano praised for her “gorgeous, mellifluous tone” and “vivid expression.” From her Boston Lyric Opera debut to a Carnegie Hall soloist appearance, Roselin’s dynamic performances captivate audiences. Equally passionate about sustainability, she balances her classical music career with a role as a prominent green building consultant. Explore her dual journey of artistry and climate action, highlighting her commitment to both the stage and a sustainable future.