During a panel discussion held Tuesday night at the Joinery, a group of small business owners, startup executives and a developer grappled with the entrepreneurial challenges and opportunities of sustainability: how to define the term, obstacles to implementation and the need to catalyze a bold new era of clean, green leadership in Oregon.

The private sector needs to play a bigger role in increasing the amount of affordable housing for Portland’s low- and moderate-income residents, said panelists at a breakfast seminar hosted by Oregon Business magazine today.