This claim is true. Because of climate change, the world is heating up, and that includes the ocean. Recent studies have confirmed that ocean temperatures have reached record highs in the summers of 2023 and 2024. With the surface levels holding more heat than ever recorded. Oceans can absorb up to 90% of the planet's carbon dioxide (CO2) through physical absorption and biological uptake. These warmer and more acidic waters lead to coral bleaching, rising sea levels, and extreme weather events.
The ocean heating up also affects the rest of the globe. Wildfires, hurricanes, snowstorms, heat waves, and extreme weather events are all causes of the ocean temperature rising. As the ocean continues to reach record-breaking highs in temperature, it increases the effects of climate change everywhere to everyone, above and below the surface.
Extreme heat impacts millions of people - WMO
OHC reached its highest level in recorded history - NOAA