Final answer:
The global ocean conveyor belt circulation is most responsible for distributing heat.
Step-by-step explanation:
The global ocean conveyor belt circulation is most responsible for distributing heat.
On a time scale of millions of years, the movement and location of continents affect ocean and atmospheric circulation, which are the two conveyor belts responsible for taking excess heat from the equatorial regions and moving it to the polar regions. Ocean currents transport heat from one temperature zone to another, resulting in milder maritime climates compared to continental climates.
[source: The Ocean and Climate Change - IPCC]