``Climate change a major challenge in rainfed areas''
Climate change is a major challenge faced by rainfed areas through long spells of drought and followed by heavy rains causing floods, according to the Director of Central Research Institute for Dryland Agriculture, B. Venkateswaralu.
Climate change is likely to hit the water-starved Arab world harder than many other parts of the globe and threatens to slash agricultural output in the area, UN and Arab League officials said.