A recent news article states that Global Warning (GW) is heating the oceans with an equivalent amount of energy as from 7 Hiroshima atomic bombs every second. 
In May 2020, I calculated that the entire biosphere (atmosphere, oceans, land surface) was being heated by 32 Hiroshima-equivalent heat bombs per second.
While it is the atmosphere that initially captures the IR (infrared = heat radiation emitted upward from Earth’s surface) that produces global warming, soon enough about 20-30% of that captured heat is absorbed by the surface waters of the ocean — in a continuous process. One could then say that 6.4-9.6 [6-10, so ~7] of the continuous heat bomb output goes into the oceans and 22.4-25.6 [22-26, so ~25] into the atmosphere — and eventually into the oceans.
The total ocean mass is the long-term repository of global heating — it is a heat battery — and its natural heat leakage rate/time (characteristic cooling time by diffusion, for the exponential decay of ~37%) is ~10,000 years.
But, carbon dioxide (CO2) in the atmosphere might be so long lived — it is ultimately removed by rock weathering, a very slow process — and continue its IR trapping, that the final expulsion of excess ocean heat past the atmosphere and out into space could be delayed much longer. So, the return to pre-industrial atmospheric conditions, regarding carbon dioxide, could be ~100,000 years or more. 
Today, the Biosphere is warming at a rate equivalent to it absorbing the total energy used by the United States in all of 2019, every 9 hours and 40 minutes. 
The geophysics of all this is fascinating, the quantities of energy and masses, and the magnitudes of spatial dimensions and timescales are awe-inspiring, the implications for human society are beyond Biblically apocalyptic, and the impacts on civil discourse and government policies so far are trivial (beyond one good movie satire in 2021, which you are being instructed to ignore by the fossil-fueled privatized propaganda ministry).
I just wanted to remind everybody.