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Discover and compare the best sedans by model year. View pricing, gas mileage and consumer ratings, or select individual vehicles for an in-depth look at their specs and features. This could be why: ...

Natural gas is a type of fossil fuel formed millions of years ago deep beneath the earth’s surface. Every year, the United States produces over 30 trillion cubic feet of natural gas. Natural gas is ...

Max Planck Institute for the Structure and Dynamics of Matter, Hamburg ...