What Avraham saw will pale in comparison to the coming supermegaCarrington Event unlike anything in recorded history.
http://iceagenow.info/2012/06/catastrophic-termination-ice-age-video/
Trying to survive a cataclysm from above, literally fire coming down.
Solar activity / instability at present is the highest it has been since the end of the last ice age,* says geologist Robert Schoch, Ph.D., in this startling video from thunderbolts.info
A major solar outburst could end an ice age, incinerate the surface of the Earth (leaving only large stone structures remaining). create deluges of Biblical proportions as plasma would evaporate water and ice which would later be re-precipitate, and the cataclysm would force survivors to seek shelter in thick stone buildings, caves, and underground, says Schoch.
From the Christians New Testament bible:
2 Peter 3:10
But the day of the Lord will come like a thief. The heavens will disappear with a roar; the elements will be destroyed by fire, and the earth and everything in it will be laid bare.
11 Since everything will be destroyed in this way, what kind of people ought you to be? You ought to live holy and godly lives as you look forward to the day of God and speed its coming. That day will bring about the destruction of the heavens by fire, and the elements will melt in the heat. But in keeping with his promise we are looking forward to a new heaven and a new earth, the home of righteousness.