2021 was the warmest year on record when considering the heat content of the world's oceans. There are many different greenhouse gases that are trapping extra heat in the atmosphere. Most of the greenhouse gases get emitted into the ocean. One of the best ways to measure climate change is global ocean heat content. This statistic is even better than global average surface temperature. Finally, the changes in the amount of warming are easier to see in OHC than they are on the surface.
Key Takeaways:
- Last year was the warmest the world's oceans have ever been and they increased in 2021 from 2020.
- There are many greenhouse gases that trap extra heat in the atmosphere that come from humans.
- Ocean heat content is one of the better ways to measure climate change, even better than global average surface temperature.
“Just about every year since 1991 has set a new OHC record, showing that heat has continued to accumulate in the Earth system as concentrations of atmospheric greenhouse gases have increased.”
Read more: https://www.carbonbrief.org/state-of-the-climate-how-the-world-warmed-in-2021
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