Since the 1970s, Brazil has been a leader in renewable energy (RE), particularly in its use of hydropower and ethanol. However, the use of other RE sources has not been as widespread.
Energy from waste has become a viable option for the private sector, particularly with landfill gas projects that benefit from a CDM income stream. Waste management is usually a municipal matter, but local governments have generally not benefited from CDM so far, and wastewater biogas as an energy source remains unexplored by most cities despite successful experiences with it in rural areas.
The Cities for Climate Protection (CCP) campaign by ICLEI, Local Governments for Sustainability, has already helped many cities in South America respond to climate change including 7 cities in Brazil, and this project contributes to its goals.