clipped from: news.yahoo.com ROME (AFP) – Greenhouse gases worsen ocean noise by raising acidity levels and causing sound to travel farther, making it ever harder for marine mammals to communicate, UN and wildlife experts said Wednesday.
"Acidity is a new, strange and unwanted development... for a whole range of marine animals," Mark Simmonds of the Whale and Dolphin Conservation Society told a news conference.
"Noisy activities are producing an acoustic fog that prevents whales from maintaining social groups, finding each other for breeding purposes, and so forth," Simmonds said.