An investigation has found that California’s former governor, Arnold Schwarzenegger, has financial ties to some of the world’s most destructive logging companies. According to the campaign group Global Witness, Mr Schwarzenegger is a part owner of an investment company, Dimensional Fund Advisers (DFA) and held an estimated 5% stake in the company, which manages an estimated $338 billion globally. These holdings included $174 million in about 20 of the 50 major logging companies.