Larry spent his career in high-tech, retired from Cisco Systems where he was a senior vice president and general manager in charge of the desktop switch and wireless LAN business units. Before that, he held engineering positions at Hewlett Packard and 3Com Corporation, later co-founding Grand Junction Networks where he was a principal inventor of modern Ethernet. His philanthropic focus is climate change, supporting strong established organizations that are objectively and pragmatically focused on the reduction of greenhouse gas concentrations. A major portion of Larry’s philanthropic impact accrues from his contributions to The Philanthropy Workshop, of which he’s an alumnus and board member. He and his wife, Jan, live in northern California and are the proud parents of two daughters and two granddaughters.