An emerging sustainability practice is setting an internal price on carbon and making business units pay for their emissions. Almost 1,400 companies publicly acknowledged doing it, according to the Carbon Disclosure Project. Disney, General Motors and Shell are among them, although these did not report the inclusion of business travel. Microsoft, SAP and Sopra Steria did. Corporate internal carbon pricing...

David Jonas in 2006 co-founded business media firm ProMedia.travel after ten years as a journalist with Business Travel News. David rejoined BTN in 2010 as executive editor when its parent company acquired ProMedia, and in 2014 co-created The Company Dime. David has a bachelor's degree in communications from Cornell University.