>BTW the amount of heat being released from the Earth's Nuclear Core and combined with the radiant energy received from the Sun, makes man's output fade into insignificance.
The issue is not about heat produced by man - which is indeed insignificant - but about gases, especially CO2, which are said to "trap" the heat from the sun.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)