Sean Gallup / Getty Images
A sign at the edge of a forest warns of radiation contamination and prohibits the picking of berries and mushrooms on April 4, 2016 near Chachersk, Belarus. Chachersk, located in south-eastern Belarus, is in a zone designated as still contaminated to varying degrees with radiation from the 1986 Chernobyl nuclear disaster, especially caesium-137. Numerous areas nearby are off-limits to visitors and signs on the edges of forests warn of radiation. (Photo by Sean Gallup/Getty Images) 
