>I understand that we can used air bubbles trapped in ice...
User CrustalTrudger, in the askscience subreddit,
>I understand that we can used air bubbles trapped in ice at the poles to understand the atmospheric composition (e.g. CO2 ppm…
See figure...
User OriEri, in the WhatIfThinking subreddit,
See figure 3 https://www.annualreviews.org/content/journals/10.1146/annurev-earth-032320-095425
[Strong link between Earth’s oxygen level and geomagnetic...
User Zephir-AWT, in the Physics_AWT subreddit,
[Strong link between Earth’s oxygen level and geomagnetic dipole revealed since the last 540 million years](https://www.science.o…
Check this out,...
User Hot-Beyond2379, in the Παλαιός / Palæos - The Story of Life subreddit,
Check this out, https://www.annualreviews.org/doi/pdf/10.1146/annurev-earth-032320-095425 , a review of many approaches to…