Ricoh collaborates with Columbia University to reduce CO2 emissions by nearly 34 tons Study yields 70% reduction in two departments' CO2 emissions, the equivalent of saving more than 1,600 trees News provided by Share this article Share this article EXTON, Pa., Feb. 2, 2021 /PRNewswire/ -- Ricoh USA, Inc. has extended its partnership with Columbia University and its onsite print shop, Columbia Print, to enhance the university's environmental sustainability efforts. Experts from Columbia Print and Ricoh collaborated to help right-size technology use in Columbia's Department of Obstetrics and Gynecology and School of Nursing to reduce CO2 emissions by nearly 34 tons, saving the equivalent of 1,617 trees. In addition to this, Columbia Print recently switched to 100% post-consumer waste (PCW) recycled paper for color prints and entirely tree-free paper for black-and-white applications.