Climate change attribution science is complex as multiple considerations need to be included. It also requires reliable on-the-ground data to provide the necessary context for interpretation. Attribution is concerned with the impact climate change conditions have on negotiations and responsibility; however, not much has been done to explore the consequences of lay attribution of climate change. Using ethnographic methods, the goal of this thesis is to examine the explanations given by indigenous communities of Puerto Nario (Colombia) to a recent extreme flood that impacted the northwestern Amazon in 2012. Results show that most of the informants attributed the event to climate change. Media and institutions attributing events to climate change without a scientific basis, can be detrimental to the local assumptions in terms of responsibility and adaptation initiatives in the face of climate change.