It was almost an ice-free planet now, with only Antarctica and Greenland holding on to much, and Greenland going fast. Sea level was therefore eleven meters higher than it had been before the changes. This inundation of the coastline was one of the main drivers of the human disaster on Earth. They had immensely powerful terraforming techniques off-planet, but here they usually couldn’t be applied. No slamming comets into it, for instance. So they bubbled their ship wakes with surfactants to create a higher albedo, and had tried various levels of sulfur dioxide injected into the stratosphere,
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