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How am I being silly? Logically if the same conditions caused an Ice age in the past and we take steps to replicate those conditions in the present then this is

• carapace 7y ago
  First, I'm not an expert, maybe you aren't being silly, I don't really know. Second, this is actually totally something to think about, and it seems to me like matznerd & co. are thinking about this very clearly and scientifically. The reasons I think it's kind of silly to worry about olivine weathering triggering an ice age is that it seems to me (again, NOT an expert) that we would have enough warning to deal with it, now that we know it's something we have to deal with. We could put less olivine out than we had planned, or remove some (make it into concrete or something), or even just burn off fuel or release methane to counteract the cooling. Like I said, you are bringing up an important point: we can no longer pretend that we're not already "geoengineering" our home world. "We are as Gods, we might as well get good at it."