Maryland vineyard goes carbon-negative for its wines

The Dodon Vineyards in Davidsonville, Maryland, spans 17 acres of centuries-old farmland. It was founded in the 1700s and for centuries it served as a tobacco plantation, before switching to corn, soybeans and other crops in the 1960s. Today, there’s row after row of grapes. Some bunches are a deep, dark purple while others are the lighter, greener variety.