Celebrate the earth on Sunday. Take care of it all year long.
BUY
Stel’s Warehouse Sale
What: Pick up last season’s looks from A.P.C., Cacharel, Gary Graham, Mason’s, and Rogues Gallery for up to 75 percent off.
Why: Thanks to New England weather, you can still wear winter gear.
When: Fri. & Sat., 10 a.m.-8 p.m.; Sun., noon-6 p.m.
Where: 334 Newbury St., Back Bay (617-262-3348).
GIVE
Fifth Annual Young Leadership Celebration
What: Join the Anti-Defamation League for a delicious fundraiser.
Why: Well led, well fed.
When: Sat., 8 p.m.-midnight.
Where: Intercontinental Hotel, 510 Atlantic Ave., Waterfront. Tickets at 617-406-6343.
Greatest Party on Earth
What: Check out the Earth Day-themed, multimedia works by Artists for Humanity teen artists along with Brazilian drummers, aerial silk artists, and acrobats all inside the group’s green headquarters.
Why: The name says it all.
When: Sat., 8 p.m.-1 a.m.
Where: 100 W. Second St., South Boston. Tickets online at afhboston.com.
SEE
Food, Fashion & Style
What: Designer Nino Lettieri shows off his spring/summer collection while restos Dante, Rialto, Upstairs on the Square, and others stuff you silly at this benefit for Mount Auburn Hospital.
Why: Eat well; dress well.
When: Fri., 6-10 p.m.
Where: Royal Sonesta Hotel, 40 Edwin Land Blvd., Cambridge. For tickets, call Nancy Derderian at 617-489-0122.
HEAR
Mari Rosa
What: Her lilting, seductive voice and smooth, Latin-inspired instrumentals evoke vintage jazz.
Why: Be bewitched.
When: Tonight, 8:30 p.m.
Where: Ryles Jazz Club, 212 Hampshire St., Cambridge. Tickets at 617-876-9330 or online at ryles.com.