2022 https://books.google.com/books?hl=en&lr=&id=PXSnEAAAQBAJ&oi=fnd&pg=PA197&dq=catastrophe%7Ccatastrophic%7Cexistential%7Capocalypse%7Cdoomsday%7C%22end+of+the+world%22+%22chemical+weapons%22%7C%22autonomous+weapons%22%7C%22major+conflict%22%7C%22super+eruptions%22%7C%22asteroid%22%7C%22cosmic+radiation%22&ots=rLFSav7g4Q&sig=4pH8f0EkfPVi0DUkOHXL_SlwD9g Book chapter