Yn gynharach eleni, gwnaeth y Dirprwy Weinidog Newid Hinsawdd arwainarchwiliad dwfn i goed a phren, a nododd gyfres o gamau yr oedd angen i Lywodraeth Cymru eu cymryd er mwyn osgoi effeithiau trychinebus newid hinsawdd.
Earlier this year, the Deputy Minister for Climate Change led adeep dive exercise into tree planting and timber, which identified a set of actions the Welsh Government needed to take forward to avoid the catastrophic effects of climate change.