Wall Street Journal: Good news, bad news on the clean-energy investment front. Despite the global economic slump, total clean-energy investment last year grew 5% to $155 billion. For the first time ever, investment in clean power generation outpaced investment in traditional energy sources: $140 billion for wind, solar, and the like compared with $110 billion for traditional power sources, according to a new report prepared by New Energy Finance for the United Nations’ Environmental Program. The …