Austin American-Statesman: With emissions caps on global warming gases looming in Washington, venture capitalists and policymakers convened at the University of Texas this week to figure out how to make a buck off the new energy economy. The largely upbeat tenor of the Clean Energy Venture Summit , sponsored chiefly by Austin Energy and the Clean Energy Incubator at UT, was in contrast to comments made just a week before by Gov. Rick Perry, who said an environmentally driven regulatory regime would harm the …