Summary

Climate change is heating our oceans. This is causing stronger hurricanes, sea level rise, and the death of sea life. Warmer oceans also absorb less carbon making every ton of CO2 we emit more potent for the planet.

This visualization keeps close tabs on rising global ocean temperatures. It is updated daily.

The data

This visualization displays global (60°S-60°N, 0-360°E), deseasonalized surface sea temperature anomaly estimates from the ECMWF Reanalysis version 5 (ERA5). Anomalies are calculated by comparing each day's average global temperatures to a baseline of 1991-2020 temperatures following Copernicus C3S guidance. The chart is updated weekly with a lag time of 6 or 7 days from the current date due to ERA5’s availability via Copernicus C3S. 

Citation

Copernicus Climate Change Service (C3S) (2023): ERA5 hourly data on single levels from 1940 to present. Copernicus Climate Change Service (C3S) Climate Data Store (CDS). 10.24381/cds.adbb2d47.