Effectively, if we can not detect an anthropogenic signal in deep ocean heat data, anthropogenic global warming would necessarily be characterized as a belief, not a scientifically confirmed hypothesis. (notrickszone.com)
The significance is substantial in that if it's really deep ocean heating, sea level rise is more of a problem. (realclimate.org)
I mean the process is supposedly that CO2 warms the atmosphere > atmospheric heat is then absorbed by the ocean > deep ocean heat causes sea levels to rise due to thermal expansion. (globalclimatescam.com)