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Invisible Scum on Sea Cuts CO2 Exchange With Air 'By Up To 50%' (theguardian.com)

An invisible layer of scum on the sea surface can reduce carbon dioxide exchange between the atmosphere and the oceans by up to 50%, scientists have discovered. From a report: Researchers from Heriot-Watt, Newcastle and Exeter universities say the findings, published in the journal Nature Geoscience on Monday, have major implications for predicting our future climate. The world's oceans absorb around a quarter of all man-made carbon dioxide emissions, making them the largest long-term sink of carbon on Earth. Greater sea turbulence increases gas exchange between the atmosphere and oceans and until now it was difficult to calculate the effect of "biological surfactants." Teams from the Natural Environment Research Council, the Leverhulme Trust and the European Space Agency developed a system that compares "the surfactant effect" between different seawaters in real time. They found surfactants can reduce carbon dioxide exchange by up to 50%.

2 of 94 comments (clear)

  1. Fake news. Science is settled by Anonymous Coward · · Score: 2, Informative

    There can be no further climate research of any sort. We already knew everything many years ago. Thatâ(TM)s whatâ(TM)s science is settled means. We know everything. Nothing left to discover. Fake news. Move along. Nothing to see here.

  2. Lake Nyos lessons by technosaurus · · Score: 3, Informative

    Deep water stores more CO2 due to its higher pressure, but natural events can cause overturn. I'm not sure any climate models account for that. A major storm, earthquake or landslide could break up the layer while bringing the high concentrations of CO2 (and other gases) to the surface to effervesce. This could explains some of the unexplained coastal die offs. The events at Lake Nyos killed hundreds of people.