The claim: 'Climate history' graph shows recent temperatures at 'lower end of the historical range' A Jan. 14 Twitter post (direct link, archive link) features a graph labeled "Climate History Over ...
The year 2025 was the warmest on record for the heat content of the world’s oceans. Ocean heat content (OHC) increased by around 500 zettajoules – billion trillion joules – since the 1940s.