Voice of America: Some economists and venture capitalists say the long term rise in gas and oil prices is driving something of a technology boom. In 2007, $148 billion went towards alternative energy development. One report says such investment is expected to triple in the next few years, creating more energy efficient products for use on the road, and in homes and businesses. VOA’s Paul Sisco has today’s Searching for Solutions report. Billions of dollars were spent on new wind, solar and biofuel …