Tagged: climate

The Dry Earth: Reversed Terraforming

After terraforming Mars quite a few times, I’ve now done the reverse thing: martifying Earth. What would our planet look like if all the water suddenly disappeared? Like a Pale Yellow Dot, a kind of cross-over between the Moon and Mars. Warming-up No, this is not a warning about the effects of global warming. Those are worrying enough, but in the short term they mainly mean that we have to deal with more instead of less water. Speculation On the other hand: sometimes planets lose a lot of water in the course of their existence. Mars, for example, once had...

The Drowned Earth: a world map as it looks after the ice sheets of Greenland and Antarctica have melted, around 4000 AD

The Drowned Earth: 4000 AD, After The Thaw

What would the world map look like if all the polar ice would melt? And how long does it take to get there? These are interesting questions now that climate change is – finally – on the political agenda. And as a cartographer, I could not resist the temptation to visualize the worst case scenario. Gravity When the Greenland ice sheet melts, the sea level rises 7 meters, when the ice melts in Antarctica it causes a rise of 58 meters. So together that makes 65 meters. But that is an average. Because something else plays a role: gravity. Such...