The 2013 GreenBiz Forums bring together thought leaders and sustainability executives to define the trends, challenges and opportunities in sustainable business today. Catch all the highlights of this year's events.
Markus Barnikel is CEO of carpooling.com. He joined the company in 2011 in order to expand into new countries and make carpooling a convenient transportation alternative for all. Barnikel has also held various leadership positions at Yahoo, including as chief sales officer in Australia and global director of sales in the United States.