4 ms·
Who was taking the CO2 measurements 4 million years ago?
by skrowl 10y ago
Who was taking the CO2 measurements 4 million years ago?
- MagicWishMonkey 10y agoWe use core samples to measure historic levels - https://en.wikipedia.org/wiki/Core_sample https://en.wikipedia.org/wiki/Core_sample
- honkhonkpants 10y agoJesus.