This is a true statement. The original source given Climate.gov is a government website that provides authorized scientific data and information pertaining to specifically climate science and the adaption and mitigation. While this source is reliable, it is important to still look into other sites to ensure that the information given is still factual.
Upon further research I was able to find another reliable source. An article written in May 22, 2024 by Michael Lowry who is a tropical weather researcher, forecasting, and emergency management, wrote in the Yale Climate Connections "Waters across the Atlantics tropical belts extending from the coast of Africa through the Caribbean are hotter now than in any other late May on record, with over 90% of the area's sea surface engulfed in record or near record warmth." even though this is a short quote from the article the further you read Lowry does a great job of explaining how this effects hurricane seasons and what may be the main cause of the record breaking heat.
I think both articles do an amazing job at giving factual evidence and give insight on the effects and causes of record breaking heat in the Atlantic ocean.