3 ms·
Also, this figure was probably lower during when the stories took place. Why? I would assume the opposite, if there were earthquakes in "17 AD, 60 AD, and aga
by exhilaration 5y ago
Also, this figure was probably lower during when the stories took place.
Why? I would assume the opposite, if there were earthquakes in "17 AD, 60 AD, and again in the 17th and 14th Centuries" as the article states, I would guess that more gases were released when the area had higher seismic activity.
- ben_w 5y agoThe background level of CO2 (not that of the caves themselves) was about 280 ppm in the Greek era: https://commons.wikimedia.org/wiki/File:CO2_40k.png https://commons.wikimedia.org/wiki/File:CO2_40k.png