Thats to say the least. I hope and assume that there are some sane people back home following such research. Looks like with the nuclear arsenal that the world possesses now, we do not need a World War involving biggies to go back to the Ice Age.
Global climate and the environment would be drastically altered for decades by two nations hitting each other with a total of just 100 Hiroshima-sized (15 kilotonnes) nuclear bombs, according to an analysis of such a conflict. Millions of tonnes of soot would be blasted at least 12 kilometres high, circulating and completely covering the globe within a month. And that’s using less than 0.03% of the explosive yield of the planet’s current total nuclear arsenal. Instantaneously, it would be colder than the little Ice Age.