The EU emissions trading system (EU ETS) is a cornerstone of the European Union's policy to combat climate change and its key tool for reducing industrial greenhouse gas emissions cost-effectively. Find out how it does so: ec.europa.eu/clima/policies/ets Español: www.youtube.com/watch?v=LbnbrK9jgRw Francais: www.youtube.com/watch?v=YK6IZYtLB5M Polski: www.youtube.com/watch?v=_AfRyb4F3kk 中国 (Chinese): www.youtube.com/watch?v=sH-IMxNH13o