The sector's transition to renewable energy is a good start - but the supply chain accounts for most of its carbon footprint. Maintaining phone calls and data packages around the world requires a huge amount of energy. It's no wonder, then, that the telecommunications sector—with its vast underground cable networks and its data centers that store troves of information—accounts for 1 to 2 percent of all energy used worldwide, according to industry estimates. This year, however, the first three companies on FT-Statista's list of European climate leaders were telecommunications groups: Sweden's Tele2 and Telia and Germany's Deutsche Telekom. (Anna Grossová, Financial Times)

"by clicking on the title of the article, you will be redirected to the entire article"