Yep, all man made.
There are two main groups who create them, the first is for art and for the thrill of sneaking out at night and creating these works of art.
The second is to turn a profit, crop circles, particularly in the UK is a lucrative business.
So, onto the evididence!
Firstly a fairly comprehensive documentary discussing crop circles, this aired on National Geographic a few years ago.
Nancy Talbot is interviewed here (man voice and all), she is of course is of BLT fame, a popular website cited by the croppies.
The documentary raises some very good points about her 'investigations', my favourite is the lack of an actual crop scientist.
Another thing to note about Nancy is her association with Robbert Van Den Broeke:
Here the "UFO" appears to be a little higher over the car, and smaller. It appears to be made up of light-balls, perhaps revolving inside a
light-ring?
"UFO #3," Robbert turns toward Roy & "UFO" now seems to be directly over Roy's head.
UFOs" #53, #54. Is this a shadow of "UFO" in lower left corner of photo?
www.bltresearch.com...
She even took some of those images herself.
Interesting, no?
So, what else shows that they're man made?
How about the evolution of GPS technology and the intricacy of crop cicles?
www.abovetopsecret.com...
How about a crop circle conference with tours of crop circles booked months in advance?
Circles of knowledge conference 2010
How are they to know that there will even be any crop circles around when they have these tours?
Unless they make them themselves...
You can even book a helicopter flight, it's only a measly
£85 for a 15 minute
flight!
I could go on so I will leave you with a couple of links to peruse at your leisure.
www.ufologie.net...
www.abovetopsecret.com...
circlemakers.org...
www.abovetopsecret.com...