Composting is grounds for change on Alaska flights Alaska Airlines serves up 37,000 cups of coffee a day on its more than 900 daily flights, brewed using more than 250,000 pounds of Starbucks coffee each year. Ensuring that those grounds go back into the earth and not into the trash is the goal of a new composting effort at Alaska Airlines. Gardeners know… 1 min read May 5, 2016 Keep up with Alaska