Huffington Post: One of the best hands-on examples of far-sighted thinking is provided perhaps by the folks who are frequently denigrated as dragging their heels when it comes to innovations — the car-makers. With billions of dollars in future sales and their very survival at stake, almost all the major ones believe hydrogen is the long-term key to reducing the global warming threat by avoiding putting CO2 into the atmosphere in the first place. Manufacturers such as GM, BMW, Daimler, Chrysler, …