This third wave will also see a significant number of new heavy-duty natural gas vehicles, including bus and truck fleets.

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Greater reliance on natural gas-fueled light duty vehicles is possible but will require more time due to greater infrastructure requirements and technological innovation.

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Other creative opportunities being explored include natural gas pumps (hooked up to the home) to fuel natural gas vehicles, and light duty vehicles relying on fuel cells (which manufacturers hope to begin building by 2015).

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Andrew Nunn, cabinet member for the environment, said EDF must "recognise its duty" to protect the surrounding Area of Outstanding Natural Beauty.

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"Call of Duty: Ghosts" adds dynamic maps, including natural events such as floods and earthquakes and player-activated obstacles such as doors and explosive traps.

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Its engine segment (49% of net sales in 2010) produces a wide range of engines that run on diesel and natural gas used in heavy-, medium- and light-duty trucks, buses, automobiles, RVs, and industrial vehicles.

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Soldiers must endure heavy physical demands, from boot camp and basic training to the rigors of duty, which can include not just war but aiding in natural disasters like hurricane Sandy.

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As a result of these economics, Waste Management recently announced it plans to have 80% of its new trucks run on compressed natural gas (CNG is used primarily in buses, vans and cars, while LNG is used in heavy duty trucks).

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The process will not be truly carbon-neutral (for that, the CO2 would have to come out of the atmosphere, and if the algae could use only the limited amount of the gas in natural air, they would not grow fast enough) but each carbon atom will have been made to do double duty in a fuel before it finally escapes.

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