This conversation isn't just "you" and me. Others are posting and reading here and the information and sources I provide are for their use and benefit, should they choose. The links and illustrations from Wiki are also to provide details and data that does not have the bias and overlay of personal opinion (such as we'd likely see in your posts.)
I'm not claiming heat from the divergent boundaries/zones produce heat on Earth's dry land surface. Only that they are a main factor in the ocean's heat ~ along with that absorbed from the Sun.
The are two(or more) ways to look at the CO2 factor in Earth's climate.
If we look at the total of CO2, it's a ratio of 400/ppm; or 400/1,000,000; or 4/10,000; or 1/2,500.
I don't recall anything in the chemistry and physics I learned decades ago that would let one molecule retain say 2 degrees F and then transfer that amount equally to the 2,499 other parts of the atmosphere.
However, it seems that when CO2 was at 280ppm (round it to 300) you gorebots have no issue and think we should get back to that level. Now that it's at the level of 400 ppm, or so, an increase of about 100 ppm, suddenly all chaos is afoot and per your hero, the great scientist Al Gore, "Earth has a fever" and "We" need to do something to reduce it.
So we are really looking at one part placing equal energy/heat to the 10,000 other parts of the atmosphere, making them just as "warm" as it is. !!! ???
Sorry, but neither math nor logic can support this absurd bit of fringe science.
However politics and a socialist, anti-Western culture agenda is trying to con the World in to buying this fairy tale.
BTW, Climate isn't like your thermostat in home/office controling heat/temp that can be set to one small range and be expected to stay there. Climate is always changing, either to cooler (Ice Ages) or warmer. Climate is always in flux and short term weather it produces isn't always an accurate gauge of the long term trends.