CLIMATE & ENVIRONMENT CLIMATE STRATEGY CO2 emissions 152 In 2018, we modified the method for calculating Scope 3 emissions. To ensure comparisons can be made with the previous year’s values, we have recalculated the data for 2017 using this method. Overview of Scope 3 emissions (t CO2e) National company Germany (incl. T-Systems) 2016 1) 2017 2) 2018 Annual comparison (2017/2018) 4,860,747 5,664,571 5,698,724 Hungary 565,804 436,463 470,090 Croatia 318,982 256,846 207,131 Slovakia 263,246 215,655 190,230 Greece 1,239,494 963,630 1,156,680 Romania 498,445 403,794 312,653 Austria 116,802 124,952 172,127 Czech Republic 185,775 183,248 113,912 Netherlands 190,656 184,267 204,051 Poland 362,078 463,699 448,032 Albania Macedonia Montenegro 3,416 7,366 93,757 95,048 30,112 34,900 only recor- ded since 2017 only recor- ded since 2017 only recor- ded since 2017 United States 4,217,941 5,118,509 5,156,652 T-Systems (without Germany) only recor- ded since 2017 207,039 166,709 Total 12,819,969 14,349,959 14,435,047 1) Corrections for 2016 led to some changes being made compared to the previous year’s report. 2) The 2017 rise resulted from the national companies in Albania, Macedonia, and Montenegro, and T-Systems units being recorded for the first time, which contributed to the 27-percent increase of the Group value compared to 2016. Due to the large proportion of emissions in our supply chain, we have a responsibility to reward our suppliers for eco-friendly activities and thus also to reduce our Scope 3 emissions. Since as early as 2016, we have been disclosing our activities to bring on board suppliers under the auspices of the supplier engagement rating of the CDP (formerly the Carbon Disclosure Project). This rating assesses how well companies have been able to integrate the topic of climate protection into their supply chain. In 2018, we once again improved on the previous year and achieved an “A”, as we did in 2016. This has secured our place on the Supplier Engagement Leader Board. An important step in achieving this was calculating the supplier-specific emission intensities based on supplier responses to the CDP Supply Chain Program. This involves calculating the ratio between a supplier’s overall emissions (Scope 1 and 2 and Scope 3 from the upstream supply chain) in grams and the supplier’s overall sales. As we know the procurement volume attributa- ble to a given supplier, we can also calculate our proportion of the sup- plier’s emissions based on emissions intensity. Our calculations do, however, depend on our suppliers providing complete and correct infor- mation. Employee commuting In the reporting year, we carried out a Group-wide survey on commuting and more than 71,000 employees took part. In the year under review, we recorded a reduction in emissions arising from commuter traffic, with levels dropping from 762,000 in 2017 to 538,000 metric tons of CO2e. A more detailed analysis and a comparison with other companies will help us in 2019 to understand how we can reduce these emissions in the future while taking into account the mobility needs of our work- force. ENABLEMENT FACTOR: CUSTOMERS SAVING ON CO2 EMISSIONS Our products and services not only connect people, they also help them reduce their CO2 emissions. In addition to our own carbon footprint, we also calculate the positive CO2 effects facilitated for our customers through using our products and solutions. The ratio between these two figures – the “enablement factor” – allows us to assess our overall performance when it comes to climate protection. We began calculating the enablement factor in a pilot project launched in 2014. In 2018, we investigated the potential savings of 15 different products. Park and Joy is one of two further services that will be included in this calculation in the future. The other is Comfort Charge. One example of savings made possible by our products is cloud com- puting, which enables our customers to reduce their CO2 emissions by using our cloud services and outsourcing their existing infrastructure to our efficient data centers. Better servers, more energy-efficient data centers, and higher infrastructure capacity utilization can cut energy consumption and the associated emissions by up to 80 percent.