The abundance of natural gas from formations such as Pennsylvania's Marcellus Shale may spark a U.S. manufacturing renaissance that could add one million jobs by 2025, according to a report released Wednesday by PwC, the professional services firm, formally PricewaterhouseCoopers L.L.P.

PwC says manufacturers could save as much as $11.6 billion a year by 2025 from lower gas prices. Natural gas is used as a fuel source and as a raw material for commodities like plastics and fertilizer.

The shale gas report, commissioned by the National Association of Manufacturers, is available online at:    - Andrew Maykuth