Drake equation applied dating
In addition, humanity has only been an industrial civilization for the past few centuries – a mere fraction of its existence as a species and a tiny fraction of the time that complex life has existed on Earth.For the sake of their study, the team first noted the importance of this question to the Drake Equation.They then address the likely geologic consequences of human industrial civilization and then compare that fingerprint to potentially similar events in the geologic record.These include the release of isotope anomalies of carbon, oxygen, hydrogen and nitrogen, which are a result of greenhouse gas emissions and nitrogen fertilizers.
If evidence could be found of another civilization in Earth’s history, it would further constrain the Drake Equation.
By examining the impact human industrial civilization has had on Earth, a pair of researchers conducted a study that considers how such a civilization could be found and how this could have implications in the search for extra-terrestrial life.
The study, which recently appeared online under the title “The Silurian Hypothesis: Would it be possible to detect an industrial civilization in the geological record“, was conducted by Gavin A.
If any anomalies are found, they further recommend that the fossil record could be examined for candidate species, which would raise questions about their ultimate fate.
Of course, they also acknowledge that more evidence is necessary before the Silurian Hypothesis can be considered viable.
For instance, many past events where abrupt Climate Change took place have been linked to changes in volcanic/tectonic activity.