A second flood could have serious impact even if it is smaller than the first, warns expert

Jacob PhillipsLive reporter A flooding expert warns that the immediate concern in Nepal and Tibet is that the flash floods have created new risks. Jeff Da Costa, researcher in flood early warning and disaster risk at the University of Reading, tells me that debris from the disaster has blocked rivers and formed new lakes upstream. "A second flood does not have to be as large as the first to cause serious impacts," he tells me. Da Costa says monitoring how lakes and barriers in the area