According to Prensa Latina on March 24, Venezuela has replaced some 45 million incandescent light bulbs with white light thrifty bulbs, benefiting more than 4 million households. The move is part of an energy saving program, the Energy Revolution Mission. More than 3000 activists have been involved in carrying out the bub changes, and are aiming to replace about 54 million in total. The mission is also expanding renewable energy sources such as solar and wind and beginning to replace petrol with gas to supply cars. Prensa Latina points out that while Venezuela is the fifth-largest exporter of hydrocarbons, it is encouraging the use of less contaminating energy sources.