Group items tagged

ScienceDaily (June 2, 2010) - New calculations reveal that the number of species on Earth is likely to be in the order of several million rather than tens of millions. The findings, from a University of Melbourne-led study, are based on a new method of estimating tropical insect species -- the largest and one of the most difficult groups on the planet to study -- having significant implications for conservation efforts.

The End of the Line is a powerful film about one of the world's most disturbing problems - over-fishing. Advances in fishing technology mean whole species of wild fish are under threat and the most important stocks we eat are predicted to be in a state of collapse by 2050. The film points the finger at those most to blame, including celebrity chefs, and shows what we can do about it. This is not just a film, it is also a campaign - for sustainable consumption of fish, for marine protected areas to allow the sea to recover, and for a new ethic of responsible fishing. www.endoftheline.com

Millions of tonnes of plastic debris dumped each year in the world's oceans could pose a lethal threat to whales, according to a scientific assessment to be presented at a key international whaling forum this week. A review of research literature from the last two decades reveals hundreds of cases in which cetaceans - an order including 80-odd species of whales, dolphins and porpoises - have been sickened or killed by marine litter. Entanglement in plastic bags and fishing gear have long been identified as a threat to sea birds, turtles and smaller cetaceans. For large ocean-dwelling mammals, however, ingestion of such refuse is also emerging as a serious cause of disability and death, experts say. Grisly examples abound.