With nations entering a new period of protectionist tariffs, it is time to rethink the regulation of global trade. Global trade is the driver of climate pollution and climate change. Call for Carbon Charging: In an article in Nature this month, three leading environmental experts have called for carbon charges rather than trade tariffs. With President Trump imposing heavy tariffs on goods from China and the EU, and those countries following with retaliatory barriers, they fail to address the real problem of global trade. That countries are simply exporting pollution and emissions through imports. The authors point out that with all good intention of the Paris Climate Accord, it is unlikely that the target will be met of keeping warming below the critical 2 degrees centigrade above pre-industrial levels. This would be so even if all countries were to meet their targets set out in their individual action plans. Photo by Elle Dunn Tackling carbon-in...