1) The study examines how people in fishing communities in Colombia behave when facing uncertainty related to climate thresholds through a behavioral experiment. 2) 256 participants across 4 communities played a dynamic common pool resource game in groups, with some groups facing information about a past climate event or potential future events with known or unknown probabilities. 3) Groups that were told about past climate thresholds or potential future events with known probabilities achieved higher average resource stock sizes, exhibiting more conservative exploitation behaviors when facing uncertainty.