Reuters: Archer Daniels Midland Co, a major food processor, said it is working with business and government groups in the US Midwest on an US$84 million project to bury planet-warming gas emissions from an ethanol plant starting next year. The project will be one of the first in the United States to use carbon sequestration technology. Carbon burial is unproven, but has the potential to be a crucial weapon against greenhouse emissions by keeping carbon dioxide from some of the dirtiest …