National Geographic: Channeled Scablands of Washington show the power of rapid changes due to climate

I love geology!  Growing up in Michigan I could see evidence of past ice ages all around me.  It’s a little trickier to see evidence in the Southeast, but there are a few examples here.  But one of the most widespread evidence of an Ice Age climate catastrophe can be found in eastern Washington, where the “scablands” was determined after many years to have been caused by a series of massive floods released when ice dams broke and spilled vast quantities of glacial meltwater down the Columbia River valley, washing away many fertile areas and leaving just isolated islands of good cropland behind.  National Geographic has a wonderful story about how the mystery of the scablands was solved, along with some fantastic pictures which show evidence for the great floods.  You can read it at https://news.nationalgeographic.com/2017/03/channeled-scablands/.  Not all effects of climate change move slowly!