Asia Times: The 2005-07 spike in petroleum prices topping out at US$100 a barrel has prodded economic planners across the globe to reconsider their energy options in an age of growing concern over global warming and carbon emissions. The Southeast Asian economies, beneficiaries of an oil and gas export bonanza through the 1970s-1990s, now find themselves in an energy crunch as once-ample reserves run down and the search is on for new and cleaner energy supplies. Notably, regional leaders at the …