Darrel Stickler has more than 20 years experience in engineering, manufacturing, enterprise software, and joint venture development in the diverse fields of commercial nuclear power, semiconductor wafer fabrication, personal computers/electronics and, at Cisco, network solutions.

At Cisco, Darrel coordinates Cisco's environmental strategy and initiatives across Cisco's operations, extended operations/supply chain, products and solutions.  As part of these duties, he has been responsible for Cisco’s environment reporting—published in Cisco's Environment Technical Review—and responding to Cisco customer sustainability-related inquiries (including energy, greenhouse gas emissions, climate and net zero!)