Don't assume that the name of this cocktail is intended to make some sort of timely ecological statement. The refreshing gin-based cocktail was actually created by Ernest Hemingway, originally found in Charles H. Baker's Jigger, Beaker, and Glass. Find this version at New York's Pachanga Patterson.
Add all of the ingredients except for garnish together in a highball glass filled with ice. Stir and garnish with a lime round.