Dave Barnes has extensive experience in environmental management and engineering, currently serving as the Manager of Environment, Land, & Water at Freeport-McMoRan since January 2017. Previous positions include Environmental Manager at Nucor Steel Louisiana from August 2014 to 2016, and roles as Environmental Engineer at Nucor Steel from August 2011 to August 2014, and at Evraz - Rocky Mountain Steel from August 2005 to August 2011. Earlier in their career, Dave Barnes worked as a Radiological Engineer and Site Safety Officer at Rocky Flats from January 1993 to June 2005, and as a Nuclear Operator in the US Navy from April 1984 to April 1990. Educational qualifications include a Bachelor’s Degree in Nuclear Engineering from Thomas Edison State University and an Associate's Degree in Electrical Engineering from University at Albany, supplemented by additional studies at University of Colorado Denver and University of Denver.