Revelation 8:6-13: Radical surgery.

” Then the seven angels who had the seven trumpets prepared to sound them.The first angel sounded his trumpet, and there came hail and fire mixed with blood, and it was hurled down on the earth. A third of the earth was burned up, a third of the trees were burned up, and all the green grass was burned up.The second angel sounded his trumpet, and something like a huge mountain, all ablaze, was thrown into the sea. A third of the sea turned into blood, a third of the living creatures in the sea died, and a third of the ships were destroyed.10 The third angel sounded his trumpet, and a great star, blazing like a torch, fell from the sky on a third of the rivers and on the springs of water – 11 the name of the star is Wormwood.[a] A third of the waters turned bitter, and many people died from the waters that had become bitter.12 The fourth angel sounded his trumpet, and a third of the sun was struck, a third of the moon, and a third of the stars, so that a third of them turned dark. A third of the day was without light, and also a third of the night.13 As I watched, I heard an eagle that was flying in mid-air call out in a loud voice: ‘Woe! Woe! Woe to the inhabitants of the earth, because of the trumpet blasts about to be sounded by the other three angels!’NIV

Here is a further helpful quote on this passage from Tom Wright:

This is ‘about God’s drastic action to purify the world, to cut it back as one would with a tree that had become dangerously diseased, removing the deadly cancer so that the rest may be saved…A little modification will not be enough. Only major surgery will do…we are seeing a major rerun of the plagues with which God afflicted the Egyptians in the end of the Israelites’ four hundred years of slavery…The plagues which John now envisages would resonate, in the minds of his hearers, with the ancient Egyptian plagues, and assure them of the same result…He is not repeating them one by one, but we cannot miss the echoes. When, eventually, we find the rescued people ‘singing the song of Moses, and the song of the lamb’ in 15.3, we ought not to be surprised. This is perhaps the major key to some of the most difficult passages in the book.’ ‘Revelation for Everyone’, from pp.81-83.