A geiger counter is placed in front of sunflowers in full bloom in Fukushima, northern Japan. At a temple in Fukushima thousands of sunflowers have been planted to help fight the radiation. "It is as if an invisible snow had fallen on Fukushima and continued to fall, covering the area," said Koyu Abe, chief monk at the Buddhist Joenji temple. Sunflowers were used near Chernobyl after the 1986 nuclear accident to extract radioactive cesium from contaminated ponds nearby. Japanese scientists are carrying out tests to prove their usefulness in fighting radiation.