Giuliani Addresses Global Warming, Immigration (CNSNews.com) - Former New York Mayor Rudy Giuliani told a Silicon Valley business group on Monday that he "definitely'' believes in global warming, the San Francisco Chronicle reported. He also praised Gov. Arnold Schwarzenegger for being a "progressive'' leader on the environment and calling for immigration policies that welcome "people who make contributions" to America's economy. All original CNSNews.com material, copyright 1998-2006 Cybercast News Service.