Sense Sonnet - Chiller

Roots

At a session of the U.N.
They just appeared out of thin air,
Long limbed creatures with greenish skin.
"We come to warn," one did declare.
"You must stop killing trees and plants,"
"Or we will stop you with quick force."
"This warning is your final chance"
"To change your fatal human course."
To show the power of their threat,
In just a blinking of the eye,
The whole U.N. complex was set
Above New York, up in the sky.

When asked why care about the trees,
"Because we once were plants like these."