TULSA, Okla.--(BUSINESS WIRE)--Williams (NYSE: WMB) will host a Clean Energy Expo in Washington D.C. on Tuesday, Feb. 13, focused on how Williams and the natural gas industry are delivering energy security and affordability while simultaneously reducing global emissions. Williams will demonstrate how the natural gas value chain is leveraging and developing cutting-edge and scalable technologies to reduce emissions – from responsibly growing NextGen natural gas to displace high-emissions fuels, to the deploy ...