- Oct 25, 2016
- Reaction score
We see the same wild swings in all of the data in the last glacial cycle. These are not anomalies. These are signs of how sensitive our planet is for northern hemisphere glaciation. It goes to show how precarious our climate is with our current land mass, ocean circulation and atmospheric configurations. Never before has the planet had a configuration like this. It is only a recent development. Every single piece of data points to a system that is poised for the triggering of bipolar glaciation. The rapid changes during the last ice age from cold to warm to cold again - over mere decades - can't be discounted. It is proof that today's climate configuration is more susceptible to changes in orbital cycles, ocean circulation, jet stream, etc. than ever before because the background conditions - which never existed before - allow for bipolar glaciation.Whoever wrote that was too embarrassed to attach their name? ...Let me know what you think about this. Maybe I am seeing it wrong.
Heinrich and Dansgaard–Oeschger Events | National Centers for Environmental Information (NCEI) formerly known as National Climatic Data Center (NCDC)Repeated global climate fluctuations during the last glacial period were possibly related to freshwater releases from land-based ice sheets.www.ncdc.noaa.gov
It's an interesting line of research ... the O-18 data is quite noisy ... some combination of instrumentation error and dynamic contamination ... I think we need better data before we can make any broad based conclusions ... natural variations within an ice age seem common ... perhaps at best this is a part of a counter-argument against the "unprecedented" temperature rise ... this data shows clearly there's plenty of precedence ... but how good it the data? ... it really doesn't line up with the ∆T data ... I'd look for other causes that effect the O-18 levels ...
Sand deposits on the Atlantic floor? ... "Since the thermohaline circulation plays an important role in transporting heat northward, a slowdown would cause the North Atlantic to cool." ... I wouldn't have put my name on this blurb either ... so I'd use the Heinrich data cautiously ... the thermohaline circulation is tossed around like some magic spell that causes stuff ... but this is centuries if not millennia per circuit ... nanofurlongs per fortnight ... the wind-driven surface currents are closer to kilofurlongs per fortnight ... which has an effect on day-to-day weather and which is nothing to speak about, in terms of heat transport? ...
Sorry ... maybe "thermohaline circulation" isn't quite a RED FLAG for fake news ... but I suggest throwing a YELLOW FLAG ... this above is a good example of how it can be used to deceive an unsuspicious public ... it isn't "thermal", it's strictly "haline" ... and slow, a mile per year ...