[UCANSEE2]

Lightning.

Lightning occurs due to the existence of our particular 'atmosphere', and due to a change in potential between that atmosphere and the surface.

There is no evidence that there was lightning before there was 'life' and a conducive atmosphere on the planet. All evidence shows that the atmosphere has substantially changed over time, and that the prokaryotes and eukaryotes helped build this atmosphere.

[Wacka]

How do you explain lightning on Earth, Jupiter, Saturn, Uranus, and possibly Venus and Neptune?

[mnehring]

There is no evidence that there was lightning before there was 'life' and a conducive atmosphere on the planet.

To the contrary, it is seen in other planets in our solar system with very different atmospheres. For example, Venus
Mars
Jupiter

[stormer]

Actually, lightning has been recorded on both Jupiter and Saturn - it ain't just an Earth thing.