Satellites, ships and buoys monitoring the Earth have captured a significant rise in global ocean temperatures since the early 1980s. The data in this chart shows daily sea surface temperature records for all of Earth's oceans, except the poles. Recent years have seen ocean temperatures reach record highs, well above the long-term average. But of all these records, nothing looks like 2023. Since March 16, the world's oceans have been running a fever. The average temperature of oceans across the globe is the highest on record, and has been for months. The ocean plays an integral role in shaping our...