Does atmospheric CO2 warm the oceans? No! Direct sunlight does. The energy from the sun hitting the Earth is in the petawatt range. Given this amount of that energy, how could CO2 affect the climate if it does not warm the oceans? It displaces water vapor, a much more substantial GHG. This displacement of a warmer GHG with a cooler GHG means that CO2 increases should cool the planet (it does in the upper Troposphere, does it not?) The last question is: Why did the rising CO2 not lead to rising temperatures onward and upward? Ahh! That answer is due to the saturation affect. So, I declare we are nearly at that point now, because increasing CO2 has not substantially increased the global temperatures above that which is occurring naturally.
Does a blanket warm my body? No! Body heat does. The energy from the food I eat is in the kilowatt range. Given this amount of energy, how could a blanket affect my body temperature if it does not warm my body?