New study indicates reduction in SOx resulted in global warming

Chamber of Shipping > Blog > News > US > New study indicates reduction in SOx resulted in global warming

A new study out of the University of Maryland suggests that the global sulphur cap on shipping in 2020 could be the leading cause of the unexpected increase in temperature. Average temperatures have soared off the charts over the last year, catching climate scientists by surprise. Climate models have long predicted an accelerating pattern of warming, but a sudden jump of 0.16 C wasn’t in the forecast, and experts have been debating the cause. The introduction of the sulphur cap created a shock to the climate system through a substantial reduction in suspended pollutant particles (aerosols) and cloud density. The highest impacts were found in the busiest shipping lanes, like the North Atlantic – where ocean surface temperatures have soared – and the South China Sea and Caribbean. While the research findings are debated, the study will provide some input to the proposals to reflect heat back into space.

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