Business Green: A new breed of carbon capture technologies capable of turning CO2 emissions into cement could soon provide a cost effective alternative to high profile, but as yet unproven, carbon capture and storage (CCS) systems, according to one of the world’s leading clean tech venture capitalist. Speaking at the World Future Energy Summit in Abu Dhabi today, Vinod Khosla, a leading silicon valley venture capitalist who in recent years has become a major investor in clean technologies, said that …