A sign outside of the Starbucks headquarters is seen at Starbucks Center on July 3, 2024 in Seattle, Washington.More than a decade ago, Starbucks bought its first coffee farm, in Costa Rica. Now the coffee giant has added two more to its portfolio.The Seattle-based company said Thursday that it's invested in another farm in Costa Rica and its first in Guatemala in the hopes of getting closer to its goal of protecting its coffee supply from climate change.Rising temperatures, frosts in Brazil, three consecut ...