A sculpture of a rain forest tree is pictured at an exhibition in the Gasometer museum in Oberhausen April 7, 2011. The exhibition 'Magic Places' runs until December 30, 2011. For the 100-metre high air space of the Gasometer, Wolfgang Volz created the 40-metre high sculpture 'Rain forest tree'.  [Photo/Agencies]

A man stand in front of the fully burned Kadonowaki elementary school after the March 11 earthquake and tsunami in Ishinomaki, northern Japan, April 7, 2011. Japan's neighbours sounded increasingly alarmed over the risk of radiation from the crippled Fukushima nuclear power plant, while figures showed the number of foreign visitors to the country had slumped during what should be the peak tourism season. [Photo/Agencies]