 After Bower's and Chorley's 1991 statement that they were responsible for many of them, circles started appearing all over the world.To date, approximately 10,000 crop circles have been reported internationally, from locations such as the former Soviet Union, the United Kingdom, Japan, the U.S., and Canada.Sceptics note a correlation between crop circles, recent media coverage, and the absence of fencing and/or anti-trespassing legislation.