The chemical balance of the oceans has tipped by a third since the start of the Industrial Revolution, according to marine scientists.

The burning of fossil fuels has resulted in a 30 percent increase in acidification, say experts. If carbon dioxide emissions continue to rise, scientists predict fisheries could die out within the next century.

On November 5, the Bermuda Institute of Ocean Sciences (BIOS) is to screen the documentary 'A Sea Change: Imagine a World Without Fish'. This will be followed by a panel discussion with the filmmakers and BIOS scientists.

A BIOS spokeswoman said: "Both a personal journey and a scientifically rigorous, sometimes humourous, unflinchingly honest look at reality, 'A Sea Change' offers positive examples of new technologies and effective changes in human behaviour that we all must choose before the oceans are lost."

The documentary starts at 6.30 p.m. at Hanson Hall, BIOS, with a cash bar from 6 p.m. Tickets are $20, $25 non-members.

For information on tickets, contact Vanessa Short by e-mail atVanessa.Shorto@bios.edu or call 297-1880 ext. 204.