GR: Turning points, cascading failures, tipping points, and positive feedback loops are some of the terms used to describe our precarious thin-ice position. This story describes more evidence that devastating sudden events can occur. We are in danger folks, and the source is one that we have created ourselves. Greed is limiting the vision of our leaders. We must use every available means to show them what might happen.
Ice age ocean current disruptions linked with greenhouse gas changes
“Scientists say they’ve discovered another huge climate warning sign in the Arctic. Past increases in CO2 levels in the air drove ocean currents to a tipping point had a big impact on hemispheric weather patterns.
“Within the span of just a few decades, rising CO2 concentrations drove temperatures in Greenland up by 10 degrees Celsius, according to a new study led by researchers with the Alfred Wegener Institute and the University of Cardiff.
“The study, published in the journal Nature Geoscience, confirms that, in the past, gradually rising CO2 concentrations have set off abrupt changes in ocean circulation. These sudden changes, referred to as Dansgaard-Oeschger events, have been observed in ice cores collected in Greenland.” –Bob Berwyn (Continue reading: Gradual CO2 buildup can trigger sudden climate tipping points – Summit County Citizens Voice.)