Moving the epicenter of an RBMK catastrophe from an abandoned exclusion zone to the heart of densely populated Europe: the immediate deaths, the inhabitable zone, and the collapse of civilization as we know it. April 26, 1986, the Chernobyl disaster contaminated vast territories of Ukraine, Belarus, and Russia. An area of about 155,000 square kilometers was tainted with long-lived isotopes like cesium-137 and strontium-90. But the human toll and economic consequences were partially cushioned by one grim fact: the explosion occurred in a relatively sparsely populated region. What if, instead of a secretive Soviet town, the same reactor blast had torn through the center of Europe — somewhere in the Rhine-Ruhr metropolitan region, the industrial heart of Germany? The answer is a script for a different, much darker history of our continent. Nearly 600,000 liquidators, hundreds of billions in losses, and yet the exclusion zone remained a remote, manageable wound. Hypothetical Central Europe would know no such fortune. The geography of catastrophe: from the wild Pripet marshes to the Ruhr To understand the scale, compare the population densities. The Chernobyl exclusion zone today covers about 2,600 km² with just a few thousand permanent residents. The Rhine-Ruhr metropolitan region, by contrast, is home to over 10 million people in an area of roughly 7,100 km². The average density there exceeds 1,400 people per km² – more than 300 times the density of the Chernobyl zone. Placing a "Chernobyl-class" release of radionuclides (roughly 5–14 exabecquerels, of which 1.8 EBq were iodine-131 and 0.085 EBq cesium-137) in such an environment would mean immediate exposure for tens of millions. The wind in the first days after an accident becomes a weapon of mass destruction. According to calculations by nuclear safety experts, if the explosion had occurred, for example, in the industrial region of North Rhine-Westphalia, a radioactive cloud would have ... Read more