Crëwyd y Cynllun ym mis Ionawr 2021, mewn ymateb i'r DU yn gadael Cynllun Masnachu Allyriadau yr UE. Fodd bynnag, mae angen iddi ddatblygu eisoes os yw'n mynd i gefnogi ein targedau sero net uchelgeisiol.
The Scheme was created in January 2021, in response to the UK leaving the EU ETS. However, it already needs to develop if it is going to support our ambitious net zero targets.