Cattle industry has a beef with EPA over greenhouse gases
EPA's Green Vehicle Guide offers clear ranking of fuel efficient vehicles
Ford manages biggest five-year fuel economy improvement among major automakers
55 mph national limit to make a comeback? Not so fast.
EPA says green house gases endanger people, environment - and it's all our fault
Feds punt on E15 waiver decision, want to test ethanol's effect on more cars
Honda tops 2009 corporate fuel economy charts, Chrysler trails
EPA testing green pavement to clean rainwater runoff
HFO-1234yf: Get used to hearing it
Feds release 2010 Fuel Economy Guide, Prius still most miserly
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