In Revelation 16, the final wrath of God poured out brings a new level of suffering and destruction to the earth. We’re shown the seven bowl judgments that act to purge and cleanse the world of man’s sin and destruction, which have impacted the earth since Adam and Eve were expelled from the Garden of Eden.
Today we see the seventh angel pouring out his bowl into the air, completing God’s wrath (except for the final judgment at the end of the Millennium) and immediately precedes the second coming of Christ. It will usher in the worst calamity of the world.