Business Green: Delivery giant UPS has this week committed to cut carbon emissions from its airline by an additional 20 per cent by 2020 in a move designed to reduce emissions from its fleet by a total of 42 per cent based on 1990 levels. The company said that it was aiming to meet the new target through increased investment in more fuel efficient aircraft, the adoption of fuel saving operational procedures such as improved flight paths, and the introduction of biofuels. Bob Stoffel, UPS …