Head to Solstice Salon at Polk and Jefferson Friday evening from 6-9 p.m. for the art opening of a new show titled "Goddess Grit", featuring encaustic pieces by Patty Rooney.

If you don’t want to be at home in the dark during Earth Hour on Saturday night, plan to hang out on Bar Belmont‘s patio to watch the dimming of downtown Dallas — the first time that the skyline and central business district will intentionally go dark. The Belmont Hotel will honor the worldwide initiative to turn out the lights for an hour, 8:30-9:30 p.m., by turning off lights in its lobby, bar, Cliff Cafe and other common areas. Celebrate with Eco-tinis (made with Square One Organic Cucumber Vodka, fresh organic lemon juice and a spash of soda for $6), live acoustic music, and plenty of candlelight.

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Speaking of eco-friendly and organic, check out these classes — a free sewing class (including materials) at the Ice House Cultural Center on Saturday from 1-3 p.m. will teach participants how to create a reusable eco-tote and decorate it with fabric paint. Call 214.670.7524 to reserve a spot. On Sunday from 7-9 p.m., vegan restaurant and bakery Spiral Diner offers a $40 party food class with instructions on how to make bite-sized desserts, roasted whole garlic, pigs-in-a-blanket, dips and spreads, and tiny sandwiches, plus "make it all look pretty".