El Salvador is the smallest country in Central America and has one of the highest population densities in the region, with more than 300 inhabitants per square kilometer.
Alongside Guatemala and Honduras, it also ranks among the poorest countries in the Americas.
More than 40% of children in El Salvador live in poverty.
Remittances from Salvadorans abroad account for more than $400 million (€345 million) or 22% of El Salvador's GDP.
Drought and forest fires are destroying areas used for food production, while hurricanes and floods cause widespread devastation. Degraded soil and increasing urban sprawl pose a threat to water and food supplies.
El Salvador has used the US dollar as legal currency for two decades, but recently it became the first country in the world to make bitcoin a national currency.