I’ll start with the quote from This chicken-little story:
“We found that in fish that do have temperature-dependent sex determination [TSD], a rise in water temperature of just 1.5 degrees Celsius can change the male-to-female ratio from 1:1 to 3:1,” says Piferrer, the study’s co-author. In especially sensitive fish, a greater increase can throw the balance even more out of whack. Ospina-Alvarez and Piferrer have found that in the South American pejerrey, for example, an increase of 4 degrees Celsius can result in a population that is 98% male.
What makes these findings especially troubling, of course, is that the International Panel on Climate Change (IPCC) predicts that ocean-water temperatures are likely to rise by 1.5 degrees over the course of this century — and they may even go up a few degrees more. “If climate change really does result in a rise of 4 degrees, which is the maximum the IPCC predicts, and if species can’t adapt in time or migrate, then in the most sensitive cases of TSD, we’re looking at extinction,” says Piferrer.
Let’s pay attention, here. This is news. Why? because they have found a dramatic rise in the ratio of male to female fish populations, right? Well, not really. There is a reference to a study that alludes to a rise in one specific population of fish in one specific area of the globe. Of course, we would never jump to conclusions based on anecdotal regional evidence and extrapolate it to global trends, would we? Of course not. More importantly, and you can almost sense the anguish in which they need to toss other potential factors into the equation, there are other potential explanations for the ratio shift. We don’t want to talk about those, though, because it detracts from the horrific nature of global warming.
The paragraphs I quoted are nearly 100% conjecture. It’s all an “if” based on IPCC models that are already failures.
Something stinks here, and it isn’t the fish. Read the rest of this entry »