No. The point as Zzarchov and others have said is that on these different planets, the causal relationship with their respective climate change is different. Three different causes on Earth, Mars and Jupiter. The same effect. There is more than one way to warm a planet.
I'm not kidding.
All three conditions aren't the same. That's the whole point that you seem to be missing. Recently many people have died from natural disasters in both Burma and China. Are both of those conditions the same?
I'm suggesting that you don't have a single causal mechanism that explains the effects on Earth, Mars, and Jupiter. There is nothing improbable about what is happening here, except that some people can't seem to accept the obvious...You yourself know that greenhouse gases warm planets, you mentioned Venus...
We know where the heat is coming from, it's coming from the sun.
This is similar to what Praxius said above, so let's consider how this works. Assuming that there is no rise in greenhouse gases, the Earth would absorb a certain fraction of the incoming radiation from the sun. The radiation that we receive from the sun is a function of the greenhouse gases already in the atmosphere, of the intensity of the sun, and other things like albedo, just to name a few. So let's look at a graph of the Sun's radiation, at this pdf.
That's the natural ebb and flow of the radiation that we have measured for the last thirty or so years from satellite measurements. Note that it is a pseudo-cyclical phenomena. A histogram of past solar cycles shows the random nature of cycle lengths.
So, if there were no increasing greenhouse gases, no changes in land-use, we should expect the temperature of the Earth to fluctuate somewhat with this cycle. Indeed the Earth does fluctuate with this cycle. It's a part of the natural variation in Earth's climate.
The problem is, that this cycle doesn't explain why the Earth is retaining more radiation now than it was in past cycles. Increasing greenhouse gases and land use changes can explain this, they have explained this.
So, of course the source of heat is the sun, nobody with half a brain would claim otherwise. That's how a greenhouse gas works. It traps heat and prevents it from bouncing back into space. Without our increasing greenhouse gases, that heat wouldn't be trapped, and we wouldn't have a warming climate.
No, it doesn't. That's the same logical fallacy you keep repeating. If the cause were the same on the three planets this discussion is dealing with, then you could make that assumption.
That's not at all what I'm saying. What I'm saying is:
1. Earth, Mars, and Jupiter are warming.
2. They all have different mechanisms that produced the warming climate.
3. You're trying to call it one natural cause, which ignores the second point.
4. This 'natural' cause(whatever it is you think is behind this, I suspect the sun) doesn't explain our planets circumstances.
5. Greenhouse gases, and radiative physics have explained it.
Further to point 5, they have actually made successful predictions about things which should happen. Your 'natural' cause, and the army of 'skeptics' have produced no explanation that encompasses more than just the temperature record(which they fail at anyways), nor have they made any predictions which have come true.