The beat of a butterfly’s wings.
The Butterfly Effect is a concept that small causes can have large effects. Initially, it was used with weather prediction but later the term became a metaphor used in and out of science.
In chaos theory, the butterfly effect is the sensitive dependence on initial conditions in which a small change in one state of a deterministic nonlinear system can result in large differences in a later state. The name, coined by Edward Lorenz for the effect which had been known long before, is derived from the metaphorical example of the details of a hurricane (exact time of formation, exact path taken) being influenced by minor perturbations such as the flapping of the wings of a distant butterfly several weeks earlier. Lorenz discovered the effect when he observed that runs of his weather model with initial condition data that was rounded in a seemingly inconsequential manner would fail to reproduce the results of runs with the unrounded initial condition data. A very small change in initial conditions had created a significantly different outcome.
We all live in an interconnected world. Frankly, it’s such an obvious statement that one presumes that very few would not agree with the sentiment expressed within it.
But (and you knew there was a ‘but’ coming, didn’t you!) very few of us (and I include Jean and me to a very great extent) really understand, “A very small change in initial conditions had created a significantly different outcome.”
Take these few items; more or less randomly read over the last few days.
Such as this post over on Patrice Ayme’s blog.
Biblical Flood Starting Anew
Abstract: update on Sea Level Rise. The meat of the essay is at the end, in the section “THE SITUATION IS ACTUALLY CATACLYSMIC“.
Heard of The Flood? As in the Bible? Sea level rose 120 meters (400 feet), in the period centered around 10,000 years ago. The cause? More than half of Earth’s ice melted in a few millennia, During the rest of the early Holocene, the rate of rise of the world’s ocean reached peaks as high as 60 millimeters (2.5 inches) per year. The melting of the ice happened because Earth’s positional and orbital parameters had made northern hemisphere’s summers too warm (most of the ice shields rested on the large continents of the north). Nowadays only two enormous ice shields are left: Greenland and Antarctica.
Those who enjoy catastrophes will love it: we have 75 meters of further sea rise to enjoy pretty soon, on our way to a Jurassic climate (the Jurassic was characterized by gigantic warm shallow seas on top of the continents). Here was the situation in the Miocene, when CO2 was at 500 ppm (where we will be at in ten years, see conclusion below).
Patrice said that the essence, the meat, of his essay was at the end. Here are his closing words:
Three scientific papers published in the last two months support my, admittedly drastic, point of view. One observed the collapse of a colossal glacier in northwest Greenland, eaten by a current at one degree C. It was a miniature reproduction of what to expect for entire ice shields. Two others observed the past, and that Antarctica was unstable at 500 ppm CO2. What they did not say is how dramatic the situation was. Indeed, sounding moderate is how they get funded by a benevolent, plutocratically ruled government (and by government, I also mean the corrupt Supreme Court, not just the latest elected buffoons). The scientists who evoked the 500 ppm of CO2 omitted two significant details, where the devil lurks. They claimed that it would take 30 years to get there. That’s not correct; at the present rate, we will add 100 ppm of CO2 within 25 years. But not just that: there are other man-made GreenHouse Gases (GHG): CH4, NOx, Fluorocarbons, etc. All these gases warm up the lower atmosphere much more than CO2. So the correct measurement is not CO2 ppm, but CO2 EQUIVALENT ppm.
We are right now ABOVE 450 ppm in EQUIVALENT CO2, and will be at 500 ppm within ten years. Let’s hope there will be more boats than on the Titanic.
P/S: If anything, the preceding is a conservative estimate. Indeed very serious scientists evaluated already the man-made greenhouse gases at 478 ppm in 2013. This means we will be above 500 ppm in CO2 equivalent within six years, in line with my previous analyses, such as “Ten Years To Catastrophe“. See:
Now it’s not all ‘doom and gloom’ and there is much that each and every one of us can do. More of that in Interconnections Three on Thursday.
But to continue with this ‘wake up call’ I’m going to republish in full an item that was recently published over on Mother Nature Network: 11 alarming facts about sea-level rise. To stop today’s post being excessively long, I’m going to split that MNN article over today and tomorrow. Here are the first 5 alarming facts. (Don’t read them just before turning the light out when going to bed tonight!)