Climate Biz: Over the past six months, oil prices have plunged more than 50 percent, renewable energy company asset values have taken an even bigger dive, and financial institutions have collapsed completely, leading to a worldwide credit crunch. Is this really the best time for your company to be thinking about generating renewable energy onsite? Before answering, consider these forecasts by the International Energy Administration (IEA) in its recent World Energy Outlook 2008: — …