The IFAW says the distance over which blue whales can communicate is down by 90 percent. It also reports that in the past decade, many whales have become beached after being disoriented because of loud noise. The group also warns that noise pollution is only going to get worse. It highlighted the use of seismic surveys as one example of the extent of the problem. These generate incredibly loud sounds every ten seconds that can travel 3,000 km. there are 90 survey ships active in the oceans today. In addition, the number of ships sailing the seas will double by 2025. Mark Simmonds, a conservation spokesman, said, “man-made noise is already triggering a kind of acoustic fog,” and called for a “response to noise pollution in the underwater world”.