Sprint CEO Dan Hesse emphasised the US operator’s commitment to environmental responsibility and sustainability in his keynote at this year’s GSMA Mobile World Congress. “Purpose, community, the environment and morality are often missing from business investment discussions. In addition to being the right thing to do over time, being environmentally responsible will lower our costs and enhance our brands,” he said. Hesse said the company aims to reuse or recycle nine out of 10 phones it sells by 2017, as well as creating a “gold standard” for the certification of refurbished phones, through its participation in the Device Renewal Forum.