Hilton Worldwide today unveiled its annual Corporate Responsibility Report, noting that it has met another companywide sustainability goal ahead of schedule as well as made progress against the company?s full range of sustainability and responsibility commitments. Through continuous improvement and corrective action among its more than 4,000 hotels, Hilton Worldwide achieved its five-year goal to reduce water consumption by 10 percent and waste output by 20 percent in 2012, one and two years ahead of schedule respectively and continues its progress toward its goal to reduce energy consumption and CO2 emissions by 20 percent by the end of 2013. Since 2009, efficiency projects have resulted in cumulative savings estimated at more than a quarter-billion dollars.