Gostyngodd allyriadau 40% yn 2020, gan ragori ar y targed o ostyngiad o 27% o gymharu â 1990. Mae Cymru hefyd yn debygol o fod wedi cyrraedd ei chyllideb garbon gyntaf (2016-2020), a bennodd darged cyfreithiol o gyflawni gostyngiad cyfartalog o 23% o gymharu â 1990. Mae'r data diweddaraf yn cadarnhau ein bod yn debygol o fod wedi perfformio'n well na'n cyllideb garbon gan sicrhau gostyngiad cyfartalog o 28%.
Emissions reduced by 40% in 2020, exceeding the target of a 27% reduction on 1990. Wales is also likely to have met its first carbon budget (2016-2020), which set a legal target of achieving an average reduction of 23% on 1990 The latest data confirms we are likely to have outperformed our carbon budget achieving an average reduction of 28%.