This paper investigates the association between mobile internet use (MIU) and climate adaptation among Vietnamese coffee farmers. We find that farmers with access to mobile internet are more likely to take adaptation measures and obtain higher coffee yields using both simple regression and instrumental variable models. Our data suggest that the adaptation results are driven by changes in water and crop management practices and mediated by farmers' access to weather forecasts and farm price information. Policy support for MIU may enhance farmers' climate resilience in developing countries.
