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September 06, 2007
Global Warming Causes.....
We hear all the time that global warming causes this and global warming causes that. So what does a scientist have to say on the matter? Michael Schirber, a staff writer at Live Science reports. Since the late 1960s, much of the North Atlantic Ocean has become less salty, in part due to increases in fresh water runoff induced by global warming, scientists say. Now for the first time researchers have quantified this fresh water influx, allowing them to predict the long-term effects on a "conveyor belt" of ocean currents.That is not all that global warming causes. Let us look at another report from Catherine Brahic a writer at New Scientist. Tim Boyer of the US National Oceanographic Data Center and colleagues compiled salinity data gathered by fisheries, navy and research ships travelling across the North Atlantic between 1955 and 2006. They found that during this time, the layer of water that makes up the top 400 metres has gradually become saltier.So there you have it. Global warming is the cause if oceans get saltier and global warming is the cause if the oceans are becoming less saline. I think this proves the science is settled. Any change in the environment is caused by global warming. You may now give Al Gore all your money. Cross Posted at Power and Control and at The Astute Bloggers H/T Commenter Mark R at Climate Audit posted by Simon on 09.06.07 at 01:38 AM
Comments
The first quote cites "much of the North Atlantic," the second one referes to "the layer of water that makes up the top 400 metres." There may or may not be a contradiction in what they imply. No significant change in the conveyor belt has yet been observed, however. Curry and Mauritzen estimate that it would take another century to slow the ocean exchanges if the current rate of fresh water inflow continues. The blockquote above is from the article cited for the first report. Despite the sloppy use of verb tense ("is on the decline") I think the first report is, in fact, just predictive. The only ocean salinity data cited refers specifically to "Nordic Seas" which, if I understand the term (I may not) refers to a small part of the North Atlantic. The New Scientist article, on the other hand, is all about data. The relationship to warming is explicitly hypothetical ("probably becoming saltier due to global warming.") I'd say that neither article presents a definitive theory. AemJeff · September 6, 2007 01:08 PM Post a comment
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Both reports are talking about the North Atlantic. So is it getting saltier or less salty?
I suppose it's nice to know they've identified the cause, even if they're still working out the effect.