Switzerland pledged to cut its global warming emissions by 50% by 2030 compared to 1990 levels. Countries around the world have committed to reducing their environmental footprint in the near future. One way of doing so is through carbon offsetting. But do you know that that is? Take a look at our video to find out how it this hotly debated strategy works and who makes use of it: http://s.swissin.fo/H0fP85F | swissinfo