T--"Energy from U-235 Pollution? What pollution?"

J--You should read about the Chernobyl and Three Mile Island nuclear leaks that are only two among thousands.

No, you asked if U235 pollution was 50million times more dangerous than CO2.
Dont play games. I'm trying to be nice.

T--"Dont confuse radioactive waste with CO2...."

J --No confusion here, I believe that radioactive "waste" spread into the atmosphere is far more dangerous than CO2.

Most radioactive waste is not released into the atmosphere - it is solid waste.

T--"U235 is U235, dont matter how you make it. "

J--If the end result is a different isotope then the "potential energy" of the atoms will be different, if the potential energy is different then the converted "kinetic energy" will also be different.

U235 is U235 is U235. It has 92 protons, making it U. It has 143 neutrons making it U235.
If it had a different number of protons it would not be U.
If it had a different number of neutrons it would not be U235.
Whether you make U235 from plutonium fission, loss of 3 neutrons from 238, or adding 2 protons to Thorium using very very small tweezers, it's still U235.
Hence :T--"I think you need a little more chemistry learning.

T--"Are you saying that if "about 1.02 x 1011 Mwh/year" of energy is accumulated into the atmosphere over the time of a million years then the Earth will be twice as hot as it is today?" now you're being silly. "

J--Perhaps

T--"Question - where do you think the 3.372*10e24MWH/year goes.....?

J-- Don't confuse radiation with radioactivity.
The "radiation" from the sun affects only the outer electrons of matter, that energy is re-radiated outward and eventually disappears into space.
The "radioactivity" that is induced in nuclear chain reaction "remains" on Earth and continues to exert its influence for thousands of years.

Energy is energy is energy.
Oh boy. Disregard for a moment that the energy received from the sun is, according to DFM's figures, 30,000,000,000,000 times greater than that expended by fossil AND nuclear fuel sources.
This relates to Tom's having a good long piss in the ocean, which has eluded you so far.
Funnily enough, any energy released by fossil fuel burning or nuclear energy does not "remain" on Earth - like all other energy it eventually dissipates.
How you get to "over the time of a million years then the Earth will be twice as hot as it is today" is completely beyond me.

T--"14psi. Total pressure earth receives from atmosphere = 14 psi Outward pressure if atmosphere taken away is nonsensical. If you take 14psi away, the earth can expand to adjust.

J--Terrestrial Atmosphere
Surface pressure: 1014 mb
Total mass of atmosphere: 5.1 x 10e18 kg
Source: http://nssdc.gsfc.nasa.gov/planetary/factsheet/earthfact.html

1014mB = 14psi.
So?

J--Question: What is the quantity of the pressure within the Earth that is exerted towards the atmosphere?

Answer - it's 14 psi. This is bleeding obvious since they have to be in balance.
It's also a bleeding ludicrous question.

T--Try this calculation to see how ludicrously small this amount is - find the depth of a 1 sq. in column of rock that would weigh 14 lbs. Assume rock density is 3 g/cm3 and convert to imperial. Rough guesstimate - about 10 feet. Compare to diameter of earth.

J--Are you saying that if I removed the atmosphere from around the Earth, the Earth's crust would lift up by ten feet?

Johannes, you're extrapolating apples and aardvarks.
Again, this amounts to the same piss in the ocean concept.

Call radius of Earth about 41849280 feet. All of a sudden make it 41849270 feet.
Difference? Bugger all.
You exert a pressure of more than 14 psi whenever you walk.
Do you set off earthquakes everywhere you go?
What analogy can I use here to make this easier to understand?

T--If you dig a 10 feet hole are you going to trigger an earthquake?

J--The ten foot deep hole would have to be large enough to cover every square inch of the Earth's surface. That would certainly be a load off the planet. Would the planet tremble? I do not know, I would rather not dig such a hole, also I would rather keep the atmosphere where it is by not polluting it with radioactivity.

No it wouldn't. There would be no earthquakes, not even a tramble.
Now having dug all that earth up you need somewhere to put it.
If ya stick it all in one spot then you might start getting some geostatic problems...........

Oh well, at least I kept it civil.
Cheers,
Tony