Volvo is a leading manufacturer of commercial vehicles including trucks, buses, construction equipment, and marine engines. In 2013, Volvo had over $41.5 billion in global sales with 110,000 employees worldwide. Trucks accounted for 65% of Volvo's global sales. Volvo is working to reduce emissions and environmental impact through testing renewable fuels such as biodiesel, ethanol, and developing electric and natural gas-powered vehicles. The company's "Blue Power" strategy focuses on developing low or zero-emission vehicles and fuels.