I was wondering if anyone was already aware of this but out in the Northern Pacific Ocean lies an area called "The Great Pacific ocean Garbage Patch." Its an area of highly concentrated garbage mostly in the form of seawater-plastic particulate soup.
Some of the more highly concentrated parts look like this:
It is of unknown size but estimates widely vary from the size of Texas or France, to an entire continent (most of it being small plastic particles). There is also a lot of evidence that wildlife is eating the garbage in alarming amounts.
Here is also a link to a good article:
What is the Great Pacific Ocean Garbage Patch? | MNN - Mother Nature Network