Ukraine's Dam Disaster Raises Nuclear Risk.

The collapse of a dam in Ukraine has caused devastating floods, with long-term consequences predicted for agriculture across one of the country's most fertile areas. The agriculture ministry warns that fields in southern Ukraine could "turn into deserts as early as next year" as vital irrigation systems cease to function. The Kherson region is among Ukraine's most fertile and productive, producing a host of different crops, from onions and tomatoes to sunflowers, soybeans and wheat. Without the reservoir, sources of drinking water supply in populated areas will also be affected, and pollution is already high.