Ocean acidification seen costing world over $1 tril. a year

TOKYO, Japan - A worker checks experimental devices installed off Ny-Alesund on the island of Spitsbergen in Svalbard, Norway, as seen in this file photo taken in July 2010, to survey the acidification of the Arctic Ocean. The U.N. Secretariat of the Convention on Biological Diversity has warned that the impact of ocean acidification could cost the world more than 1 trillion dollars annually by 2100.