With 120,000 employees from over 60 countries, diversity has always been fundamental to Carnival Corporation and their 10 global brands. Since joining the company, Arnold has focused on diversity and the competitive advantage that diversity of thought provides in fostering innovation. Not only have they appointed several diverse leaders to serve as presidents of cruise lines, the organisation has also launched multicultural, diversity and inclusion campaigns, announced diversity targets and goals, and have partnered with many diversity and inclusion organisations, including Executive Leadership Council, Hispanic Association on Corporate Responsibility and Leadership Education for Asian. Arnold was also the President & CEO of the Executive Leadership Council for two years and has been a speaker at various events promoting diversity in the workplace, including the African American Student Union’s annual conference and Ethisphere’s Global Ethics Summit. While in college, Arnold and his wife helped found the Society of Black Engineers to support other African-American students in engineering. Additionally, through Carnival Foundation, Arnold has led the drive to support United Negro College Fund, National Museum of African American History and Culture, and Big Brothers Big Sisters of Miami.