Satellite image showing sea surface temperature anomalies in May 2022 and May 2023 compared to a reference period (1985??993). An increase in sea surface temperatures off the northwest coast of South America is attributed to the impending El Nino weather phenomenon. Natural weather events, such as El Nino, drive significant variations in global temperature and there are concerns surrounding whether this will intensify the sea temperature rises. Monitoring the changes in sea-surface temperature in the lead up to El Nino helps to further understand and predict the mechanisms and consequences of this cyclic phenomenon against the backdrop of climate change. Climate change is fuelling extreme temperatures around the world, causing the temperature of ocean surface waters to be at an all-time high. Data obtained by the Sea and Land Surface Temperature Radiometer on the Copernicus Sentinel-3 satellite.