This Earth Day Magnolia Bakery’s four branches will let you do just that.

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Every time you cough up $3.25 for an Earth Day cupcake the bakery will hand over a buck to the Nature Conservancy. The deal is good Wednesday, April 21, and Thursday, April 22; cupcakes come in vanilla and chocolate flavors topped with multi-colored vanilla butter cream icing decorated with various shades of sugar and peace signs.

Available at the original downtown bakery (401 Bleecker Street), the Rockefeller Center shop (1240 Avenue of the Americas) the Uptown store at 200 Columbus Avenue and the midtown shop at Grand Central.