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| Chat Line | Time | |
|---|---|---|
| Doitsujin: That also sieved off large amounts of carbon dioxide. | 9 years ago at 10:57 am | |
| Nitrocosm: Ah. So that's how the oceans help absorb some of the carbon dioxide. | 9 years ago at 10:58 am | |
| Doitsujin: its actually quite substantial. There's a class of microorganisms called coccoliths (which are technically single-celled algae) which have a tiny calcium carbonate shell. | 9 years ago at 10:59 am | |
| Nitrocosm: The Earth's biodiversity really does help it to adapt to changing conditions, eh? | 9 years ago at 11:00 am | |
| Doitsujin: Well, sometimes things also went awry. | 9 years ago at 11:00 am | |
| Nitrocosm: Although I wouldn't assume that humans still can't overwhelm its capacity on a short time scale. | 9 years ago at 11:00 am | |
| Doitsujin: Earth's first ice age back in the precambrian probably was caused because the first photosynthetic lifeforms sieved too much carbon dioxide out of the atmosphere, which caused the temperatures to crash. | 9 years ago at 11:01 am | |
| Nitrocosm: Really? I didn't know. | 9 years ago at 11:01 am | |
| Doitsujin: something similar happened "shortly" before the end of the precambrian, during a period that is aptly named "Cryogenian". | 9 years ago at 11:02 am | |
| Doitsujin: Geologists are still discussing wether or not the entire earth actually froze over in that period right up to the equator, or not. | 9 years ago at 11:02 am |
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