https://www.cbc.ca/news/technology/doomsday-clock-2020-1.5435940In its annual announcement, the Bulletin of the Atomic Scientists moved the Doomsday Clock ahead to 100 seconds to midnight.
The clock was introduced in 1947 and is a symbolic representation of how close humanity is to destroying civilization. Typically, the hands are moved forward or back depending on how vulnerable the world is. Midnight represents a catastrophe.
While the hands of the clock typically move a minute at a time, the Bulletin of the Atomic Scientists moved it forward by 30 seconds in 2017 and 2018, stopping at two minutes to midnight. It remained unchanged in 2019.
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"If the Earth warms by what we tend to think of just a few degrees … we have no reason to be confident that such a world will remain hospitable to human civilization," said
Kartha, who was also the author of the fifth and sixth assessment reports of the Intergovernmental Panel on Climate Change.
Former California governor Jerry Brown, who is the bulletin's executive chair, gave a fiery speech. He said while he's not a scientist, he recognizes the importance of the symbolic clock and that it's the only way to let the world know the threats to civilization.