MILAN – Starbucks, which accounts for approximately 3% of the world’s coffee purchases, announced last week it has developed six new climate change-resistant tree varietals and all of which produce Arabica. The new tree seeds, developed by agronomists at Starbucks’ Costa Rica farm Hacienda Alsacia, are also resistant to coffee leaf rust. The company’s agronomy team has researched, developed, and improved hundreds of hybrids and varietals. The announcement came during Starbucks’ first Global Coffee Week, which ran through Sunday and included announcements about...