The world's oceans are faced with an unprecedented loss of species comparable to the great mass extinctions of prehistory, a major report suggests today. The seas are degenerating far faster than anyone has predicted, the report says, because of the cumulative impact of a number of severe individual stresses, ranging from climate warming and sea-water acidification, to widespread chemical pollution and gross overfishing. [...more]
A new study says the seas are acidifying ten times faster today than 55 million years ago when a mass extinction of marine species occurred. And, the study concludes, current changes in ocean chemistry due to the burning of fossil fuels may portend a new wave of die-offs. [...more]
Idiots. Morons. Blockheads. Numbskulls. Nothing quite captures the mind-withering stupidity of what has just happened in Doha. Swayed by Japan and a number of other countries, some of them doubtless bought off in traditional fashion, the members of the Convention on International Trade in Endangered Species (Cites) have decided not to protect the Atlantic bluefin tuna. [...more]
Americans love their shrimp. It's the most popular seafood in the country, but unfortunately much of the shrimp we eat are a cocktail of chemicals, harvested at the expense of one of the world's productive ecosystems. Worse, guidelines for finding some kind of "sustainable shrimp" are so far nonexistent. [...more]
The Earth has nine biophysical thresholds beyond which it cannot be pushed without disastrous consequences, the authors of a new paper in the journal Nature report. Ominously, these scientists say, we have already moved past three of these tipping points. [...more]
Mounting evidence that human activity is changing the world’s oceans in profound and damaging ways is outlined in a new scientific discussion paper released today. [...more]
Greater meat consumption and demand for fossil fuels worldwide are expected to cause increasingly more harmful algal blooms and dead zones in coastal and freshwater areas. [...more]
Coral reef survival is balancing on a knife edge as the combined effects of ocean acidification and ocean warming events threaten to push reefs to the brink of extinction this century, warned a meeting of leading scientists. [...more]
Overfishing and disease have decimated shellfish populations in many of the world's temperate estuarine and coastal ecosystems. Smithsonian scientists, led by Whitman Miller, ecologist at the Smithsonian Environmental Research Center in Edgewater, Md., have discovered another serious threat to these valuable filter feeders—rising levels of atmospheric carbon dioxide that contribute to the acidification of open ocean, coastal and estuarine waters. [...more]
An international team of scientists has proposed a set of basic rules to help save the world’s imperiled coral reefs from ultimate destruction. [...more]
