2022 https://books.google.com/books?hl=en&lr=&id=bKh2EAAAQBAJ&oi=fnd&pg=PT284&dq=%22global+catastrophic+risk%22&ots=itauXb8tX8&sig=XwJlv7pqCv-0sgXQNnnjWAX_a0k Book chapter Medium
2022 https://books.google.com/books?hl=en&lr=&id=bKh2EAAAQBAJ&oi=fnd&pg=PT284&dq=%22global+catastrophic+risk%22&ots=itauXb8tX8&sig=XwJlv7pqCv-0sgXQNnnjWAX_a0k Book chapter Medium