Sonal Noticewala
A fence built to prevent rabbits from entering the Australian outback has unintentionally allowed scientists to study the effects of land use on regional climates.
The rabbit-proof fence — or bunny fence — in Western Australia was completed in 1907 and stretches about 2,000 miles. It acts as a boundary separating native vegetation from farmland. Within the fence area, scientists have observed a strange phenomenon: above the native vegetation, the sky is rich in rain-producing clouds. But the sky on the farmland side is clear.
The bunny fence, as it turns out, failed to prevent rabbits from entering the farmland, but it has successfully blocked kangaroos and emus.
http://www.nytimes.com/2007/08/14/sc...th/14fenc.html