El Nino not responsible for East Africa floods: scientists

Torrential rainfall in Kenya, Tanzania and neighbouring nations killed more than 500 people, displacing hundreds of thousands as the deluge swept away homes and swamped roads during the March to May monsoon season. The region was hit by floods late last year as well, with researchers saying that the Indian Ocean Dipole (IOD) -- a climate system defined by the difference in sea surface temperature between western and eastern areas of the ocean -- contributed to the heavy rainfall. This year's rains...