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An unaccountably high level of carbon in the atmosphere could be such an indicator.
by clem 5y ago
An unaccountably high level of carbon in the atmosphere could be such an indicator.
- Retric 5y agoI think it might be considered evidence, but CO2 levels vary quite a bit over time. Picture what would happen if we measured atmospheric bass on a planet over a few hundred years and saw that kind of swing in CO2. Decidable radio signals on the other hand are far less ambiguous. I just can’t think of much that would be both detectable and a smoking gun.
- Retric 5y ago*gas not bass dam auto corrupt.