Fuel from plastic

So I was walking home today from town and seeing all the plastic rubbish lying everywhere and was thinking how could all this rubbish be useful?

if plastic was valuable then people wouldn't leave it lying around.

I was wondering could this plastic be turned back into oil to make fuel?

while scouring the web I found this:

I know this is in't a complete solution to our fuel and waste solution but at least it would be a start to clearing up our streets.