Xiang Zhengming plants rice seedlings in a field in southeast China's Fujian Province earlier this month. A newly released report says nearly 20 percent of the country's farmland is contaminated. Lin Shanchuan/Xinhua/Landov hide caption

itoggle caption Lin Shanchuan/Xinhua/Landov

Family members of passengers aboard Malaysia Airlines Flight 370 tearfully shouted slogans during a protest Tuesday in front of the Malaysian Embassy in Beijing. Kim Kyung-hoon/Reuters/Landov hide caption

itoggle caption Kim Kyung-hoon/Reuters/Landov

Chinese relatives of the passengers onboard Malaysia Airlines flight MH370 wait for the latest information at Lido Hotel Sunday in Beijing, China. Lintao Zhang/Getty Images hide caption

itoggle caption Lintao Zhang/Getty Images

This satellite image, taken on March 18, has intensified the search for Malaysia Airlines Flight 370 in the Indian Ocean about 1,500 miles southwest of Perth, Australia. The image was released Saturday by Chinese authorities. /Reuters/Landov hide caption

itoggle caption /Reuters/Landov

Adm. Mohd Amdan Kurish of the Malaysian Maritime Enforcement Agency Admiral, left, checks radar during a search for the missing Malaysia Airlines plane off Tok Bali Beach in Kelantan, Malaysia, on Sunday. Malaysian Maritime Enforcement Agency/AP hide caption

itoggle caption Malaysian Maritime Enforcement Agency/AP