Bring 2 cups of water to a boil, add ginger and reduce heat to medium-low to simmer for 5 minutes. Remove from heat and strain once cooled, discarding ginger pieces
In a separate saucepan, create simple syrup by dissolving the sugar in 1 cup of boiling water and set aside
In a large cup with ice, combine 1/2 cup of ginger water with 1/3 cup of syrup and 1/2 cup of seltzer. Add ice, and garnish with lime wedge and mint leaves, optional