You need me

I’m as slippery as a wet fish.

I love to to work my way through many things.

I quench the thirst of many.

I’m always wanted.

I‘m a refreshing change.

The sun is my enemy, its touch burns my core.

I‘ve been everywhere, seen everything and know I’m of great importance.

I control this planet, without me it would fall.

Depended on by millions but I’ve also taken the lives of millions.

I love to flow across the earth and carve out new paths.

I hold an almighty power which for me is a delight.