Permafrost is a big topic in climate science. The release of methane, the damage to infrastructure & the massive Siberian craters often make the news. But there’s one area that’s mentioned far less often but is also of huge importance – that is Arctic coastal erosion. Thread 1/17 In the last few decades, some parts of the Arctic Ocean coastline have undergone massive accelerations in their retreat rates and mass loss. It’s bad enough that it’s even been described as a state of collapse! 2/17