Extinction event probabilities

Is there a comprehensive list of the possible ways that humans could become substantially extinct, as well as estimated probabilities? Searching online leads to many, but I trust dopers to lead me to the more reliable sources. The list would presumably include threats from the cosmos, from the earth itself, from disease, etc.

A thread from a few days ago, where we’re having a hard time coming up with anything that could drive humans extinct.

Nick Bostrom’s website is a good place to look
http://existential-risk.org