Reuters: Trustees of a $9 billion endowment fund founded by the late William Hewlett, of Hewlett Packard, say they want to spend tens of millions of dollars a year fighting climate change as part of a bigger fund. "We’ve been meeting potential philanthropic investors," said President of the Foundation, Paul Brest, in London on Friday. "We’re committing to a long-term grant-making project for climate change. There’s a lot of initiatives by U.S. philanthropy, but we haven’t …