Who's the Monster?

I used to swim by Scotland's coast.

Gliding carefree, quiet as a ghost.

It's the serenity I miss the most.

They called me the Lochness Monster.

They'd run away when I would splash.

My lake was empty, then in a flash.

They started dumping all their trash.

They called me the Lochness Monster.

I breathe in the plastic, too much to take.

My life is a constant stomach ache.

The water is green. There are cans in the lake.

Yet, they say I'm the monster.