> There is a chance a positive feedback occurs, global warming spirals and Earth becomes uninhabitable. There is virtually no chance of this happening on Earth

> There is a chance a positive feedback occurs, global warming spirals and Earth becomes uninhabitable. There is virtually no chance of this happening on Earth until the sun gets significantly larger: https://en.wikipedia.org/wiki/Runaway_greenhouse_effect#Earth https://en.wikipedia.org/wiki/Runaway_greenhouse_effect#Eart...