Over the past 30 years, more than 15.5 million Colombians have been affected by natural disasters (floods, landslides, earthquakes and hurricanes). In 2010-2011, La Niña put the whole country in a danger. Extensive flooding destroyed roads, bridges, aqueducts, houses and buildings, and hundreds of hectares of farmland. The effect was a major economic loss. La Niña cost Colombia about 11.2 billion pesos (441 million euro), equivalent to 2.2% of GDP, according to the Economic Commission for Latin America. Over 3 million people (about 7% of the national population) were directly affected.
The most vulnerable to extreme weather events were rural agriculture-based communities in high climate risk regions, such as the Mojana subregion of Depresión Momposina. While Columbia's wetlands have natural hydrological regulators to manage both wet and dry seasons, the Mojana area experienced more environmental degradation. This lowered its capacity to manage flood and drought conditions. As climate change has affected weather cycles, more extreme weather events have increased the vulnerability of households in the region.