Until recently, nearly all the ethanol used to make ethyl tert - butyl ether (ETBE) for Japanese consumption has come from Brazil, whose sugarcane - based ethanol boasts lower emissions of greenhouse gas carbon dioxide than U.S. ethanol made from corn. (cnbc.com)
Start - up NewCO2fuel, one of over a dozen being promoted in the government initiative, is developing a technique to turn the common greenhouse gas carbon dioxide into a useful fuel gas mixture called syngas. (scientificamerican.com)
Those 30 million, million tonnes of accumulated excavation, ore and manufacture can be seen as the physical residue of the colossal exploitation of energy, much of it in the form of fossil fuels that is returned to the atmosphere as greenhouse gas carbon dioxide to trigger global warming and potentially catastrophic climate change. (climatenewsnetwork.net)