More dangerous if it were to happen? Giant asteroid. It would be catastrophic damage that would immediately be felt world wide. Little to nothing could be done on a personal level.
Global warming, in comparison, is almost a non-issue. It’s rate of change will allow the creatures of earth to adapt and find niches to thrive. There will still be casualties along the way (you may want to stop moving to the middle of the fucking desert and planting lawns, and something like the polar bear may die off) but it will happen via a slow decline. On a personal level, one can make choices to help keep you and yours in relative comfort.
