Climate change is a hideously complex process and many if not all of the existing models are woefully lacking ("little" things like leaving out the effects of clouds and stuff like that).

I agree with you, one of the “little” things that is missing is the energy released into the atmosphere from leaking nuclear power plants and the various other ‘enhanced’ nuclear materials such as the ‘waste’ from nuclear power plants.

Other interesting information.

Global Nuclear Weapons Tests, 1945-1998

United States – 1030 +2 (815 underground)
Soviet Union- 715 (496 underground)
Britain – 45 (24 underground )
France 210 (160 underground )
China – 45 (22 Underground )
Pakistan – 2 (2 underground )
Total 1794
Underground 1519
_____
275 Total Atmospheric nuclear detonations
Source - http://www.brook.edu/dybdocroot/FP/PROJECTS/NUCWCOST/TESTS.HTM

From one location 230 tons of radioactive material has leaked into environment between the year 1959 and the year 1987. During the same period of time 337 tons of Uranium hexafluoride also escaped from various nuclear facilities
Between 1944 and 1987, 530,000 curies of radioactive Iodine has been released into the environment. Three Mile Island incident released 15 curies of radioactive Iodine.

Average atmospheric pressure at sea level (March 1978) 760 mm of mercury.
Ozone forms with frequency below 2000 angstroms.
1 angstrom = 10-8 cm.
Visible region is from 3800 a (purple) to 7700 a (red).

http://www.npl.co.uk/npl/clubs/namg.html

Cheers ;-)
Johannes