Illegal dumping at Scales Road, London, England
Illegal dumping in a residential subdivision, north of Toronto, Canada
Fly-tipping, fly dumping, or illegal dumping refers to dumping waste illegally instead of in an authorised rubbish dump. It is the illegal deposit of any waste onto land; waste dumped or tipped on a site with no licence to accept waste.
The term fly tipping is derived from the verb tip, meaning "to throw out of a vehicle" and on the fly, meaning "on the wing" — to throw away carelessly or casually.
United Kingdom 
Taxes on landfill in the UK led to illegal waste dumping, fly-tipping. This is becoming a significant problem in the UK, in any vacant space that is not easily monitored. Materials fly-tipping can range from green waste to domestic items, to abandoned cars and construction waste, much of which may be hazardous or toxic, not to mention unsightly.
See also 
External links 
UK Fly-Tipping Statistics compiled by AnyJunk