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64 results found for "emission"
Scientists hope to turn coal plant CO2 emissions into clean air.
Showroom stickers would rank cars based on fuel economy and emissions.
As the federal climate bill dies, a regional alliance steps up for emissions controls.
Country moves to make natural-gas fired plants the new clean-power standard.
The switch to efficient lighting will have a significant impact on emissions – and climate change.
Zero emissions? That depends on where you get the electricity to charge your car.