Since 2016, Ecuador, through the Ministry of Agriculture and Livestock (MAG) and the Ministry of the Environment (MAE), with technical support from FAO and financing from the Global Environment Facility (GEF), has implemented the Climate Smart Livestock (CSL) approach. This approach, which is a pioneering initiative in Latin America, seeks to sustainably increase livestock productivity and the income of producers, improve the resilience of livestock systems to climate change, and reduce greenhouse gas (GHG) emissions. The preliminary results of the initiative are very encouraging: in less than four years, the income of the participating families of livestock producers has increased by 10.7 percent, and the efficiency of livestock production, measured in GHG emissions per unit of product (milk and meat), has increased by 17.7 percent. As part of this valuable process, the FAO Country Office in Ecuador has taken the important step of mobilizing private sector participation. In early 2019, FAO established a strategic alliance with El Ordeño, a major Ecuadorian food company. In the first stage, which is described in this document, FAO worked with the company on a pilot project to adapt and validate participatory diagnostic tools, in order to identify good practices and measure GHG emissions in the field.