Samsung was able to cut the carbon emission of the five memory products through enhanced production efficiency. This means that less electricity and raw materials were used per chip. For the Portable SSD T7 (1TB), Samsung used environmentally sustainable paper instead of plastic as packaging material to minimize the carbon footprint of the product. Samsung estimates that the volume of carbon emissions reduced from the five products, after their release until July 2021, amounts to approximately 680,000 metric tons of CO2, which is equivalent to 11.3 million urban tree seedlings grown for ten years or the greenhouse gas emitted from 149,000 cars driven for one year. Before a product can be certified for carbon reduction, its current carbon footprint must be validated in order to set the starting line for measuring carbon footprint changes. The CO2 Measured label verifies the current carbon emission of the product with a globally recognized specification (PAS 2050).