Invisible scum on sea cuts CO2 exchange with air 'by up to 50%'

Scientists say the findings have major implications for predicting our future climate

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.

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.