Re:7:2:
And I saw another angel ascending from the east,
having the seal of the living God:
and he cried with a loud voice to the four angels,
to whom it was given to hurt the earth and the sea,
Re:7:3:
Saying,
Hurt not the earth,
neither the sea,
nor the trees,
till we have sealed the servants of our God in their foreheads.

Re:8:7:
The first angel sounded,
and there followed hail and fire mingled with blood,
and they were cast upon the earth:
and the third part of trees was burnt up,
and all green grass was burnt up.