Since the writing of this article, researchers have discovered, "Brosimum does an amazing and rarely documented trick with atmospheric carbon. It uses the Oxalate pathway to convert atmospheric carbon to calcium carbonate, effectively putting it into the geologic carbon cycle, removing it from the organic carbon cycle for, well, possibly millions of years!" - Erika Vohman
It's not your every day decaf coffee alternative that converts atmospheric carbon to geologic carbon!