Liu Xiaobo

Nobel Prize for Colombia peace deal or UN climate pact?

Guessing the winner of the Nobel Peace Prize is notoriously hard because the secretive Norwegian Nobel Committee isn't dropping any hints, except that 376 people and groups have been nominated for the award, which will be announced on Oct. 7.

That doesn't stop Nobel watchers from speculating, sometimes based on their own preferences or the small number of nominations that were made public by those who submitted them.

This year they include Pope Francis, the Afghan women's cycling team, former National Security Agency contractor Edward Snowden, the White Helmets rescue group in Syria and Nadia Murad, a Yazidi woman who escaped sexual slavery and has become a spokeswoman for...