The study looked at how the temperature of the ocean in the tropical Pacific can be predicted more accurately. They found that the temperature in the tropical Atlantic can affect the prediction of the Pacific temperature. By analyzing data from observations and models, they discovered that removing the influence of the tropical Atlantic makes the prediction of the Pacific temperature less accurate. Different models show a wide range of effects from the Atlantic on the Pacific, leading to varying levels of accuracy in predicting the Pacific temperature. To make predictions more reliable, it is important to reduce the differences between models.