Eric Priante Martin on TradeWinds, 16 November 2022: At COP27, a bid to lift shipping’s black carbon emissions up the agenda There is perhaps no more iconic front line in the battle against climate change than the Arctic, where scientists say temperatures have risen by three times the global average. That has led to a dangerous feedback loop. Global warming melts the sea ice, but that ice actually helps keep the planet cooler by reflecting some if the sun’s rays, so when it goes away, it threatens to make climate change worse. And this has opened the door to another