Ocean Temperature Trends (IMAGE) University of Washington Caption Sea-surface temperature observations from 1979 to 2020 show that the surface of the Pacific Ocean has cooled off of South America and warmed off of Asia. This regional pattern is opposite to what’s expected long term with global warming. A new study suggests that in the short term, climate change could be favoring La Niñas, though it is still expected to favor El Niños in the long term. Credit Wills et al./Geophysical Research Letters Usage Restrictions With credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.