Wednesday, February 20, 2008

Ocean 'dead zones' increasing

That's what scientists studying the so called 'dead zones' have concluded according to this article from the San Fransisco Chronicle.

"the seafloor revealed a boneyard of crab skeletons, dead fish and other marine life smothered under a white mat of bacteria." It doesn't sound too good, does it?

The dead zones are created by local conditions of low oxygen, and are doubling in number around the planet every decade. Whilst there are several causes for the development of the dead zones. the scientists are now firmly pointing the finger of blame at global warming as a key exacerbating factor.

Meanwhile, some palaeontologists are suggesting that the planet is already well into a sixth mass species extinction. They suggest that as many as 70% of species (similar to that which marked the disappearance of the dinosaurs 65 million years ago) will disappear from our biosphere if we do nothing to halt climate change. The report in the Anchorage Daily News makes for very depressing reading.

Time for less talk and more doing?

No comments: