Associated Press: Gas guzzlers could become relics of the past and farmers may rival oil companies in producing motor fuels under a new energy law. Consumers also will save electricity – and money – from more efficient refrigerators, furnaces and dishwashers. There will be improved efficiency labeling on TVs and computers. And the office building of the future may need less energy and rely more on wind, solar or biomass, becoming zero emitters of greenhouse gases. That’s the future outlined by …