Mae her newid hinsawdd yn gofyn inni weithio gyda'n gilydd. Yr wythnos hon rwyf i ym Mrwsel, fel aelod Grŵp Llywio y Cynghrair Dan2. Roedd Cymru yn un o sylfaenwyr y rhwydwaith, sydd bellach wedi tyfu i 167 o wladwriaethau unigol, sef cyfanswm o dros 50% o gynnyrch domestig gros byd-eang. Cyn COP28 ac fel yr amlygwyd gan Gytundeb Hinsawdd Glasgow a Chynlluniau Gweithredu Sharm el-Sheikh, mae angen gweithredu brys ar sawl lefel. Credwn y gall y camau y mae Cymru ac aelodau eraill o'r rhwydweithiau hyn yn eu cymryd greu pwysau i sicrhau newid ar lefel fyd-eang, gan ddangos yr hyn sy'n bosibl. Drwy'r clymbleidiau rhyngwladol rydym yn rhan ohonynt rydym wedi cael ysbrydoliaeth ac anogaeth, ac wedi gweld diddordeb gwirioneddol yn y camau sy'n cael eu cymryd yng Nghymru, i wrthwynebu echdynnu tanwyddau ffosil, newid buddsoddiadau seilwaith a mynd ar drywydd adfer ein stôr carbon naturiol.  Gyda'i gilydd mae'r cyfoeth o wybodaeth ac arbenigedd ledled y taleithiau a'r rhanbarthau hyn yn enfawr ac yn rhoi gobaith i mi allu frwydro yn erbyn newid yn yr hinsawdd a gosod y llwybr byd-eang i allyriadau sero net erbyn 2050.
The challenge of climate change requires us to work together. This week I am in Brussels, as a Steering Group member of the Under 2 Coalition. Wales was a founding member of the network, which has now grown to 167 individual states, totalling more than 50% of global GDP. In advance of COP28 and as highlighted by the Glasgow Climate Pact and the Sharm el-Sheikh Implementation Plans, urgent multilevel action is needed. We believe the actions that Wales and other members of these networks take can create pressure to bring about change at the global level, demonstrating what is possible. Through the international coalitions of which we are a part we have drawn inspiration and encouragement, and we have seen real interest in the actions being taken in Wales, to oppose the extraction of fossil fuels, shift infrastructure investment and pursue recovery of our natural carbon stores.  Collectively the wealth of knowledge and expertise throughout these states and regions is huge and gives me hope we can fight against climate change and set the global path to net zero emissions by 2050.