English: Okay, we will move on, therefore, to our second agenda item, which is our first evidence session on decarbonising the private housing sector. Members will recall that we as a committee agreed at the beginning of the sixth Senedd to undertake a multiphase inquiry into decarbonisation of Wales's existing housing stock, and following some initial scoping work, we've chosen to prioritise three areas in that context: private sector housing, financing retrofit and skills and the supply chain. For this term, we will be focusing on private sector housing, and to inform our work, we held a public consultation over the summer. We received some 32 responses, and the Senedd's citizen engagement team have met with private sector landlords and homeowners to capture their views on housing retrofit. Of course, the output from those sessions will feed into our work. But we are here today to take oral evidence, beginning with three witnesses appearing before us. I'd like to warmly welcome Dr Donal Brown, sustainability director with Sustainable Design Collective Ltd; Rhiannon Hardiman, change maker - climate, nature and decarbonisation - with the Office of the Future Generations Commissioner for Wales; and also joining us virtually, Chris Jofeh, chair of the Welsh Government's independent implementation group on decarbonising existing housing. So, a very warm welcome to all three of you. We'll move immediately to questions, if I may, and I will ask whether - . I should say at the outset that you're not all expected to answer every question; we have a number of questions in the little time that we have with you. So, clearly, raise your hand if you do want to come in, but don't feel that you always have to come in; some questions will be more relevant to certain witnesses, perhaps. But, a general question first of all. I wanted to ask whether you consider that a long-term national strategy for decarbonising of housing across all tenures is essential in driving progress in this area. And what are your views as to what extent the Welsh Government is doing that, has done that, or why haven't we seen something of that kind to date? It's quite a broad-ranging question, I know, but the point is that we need a strategy, perhaps.
Welsh: Ocê, wel ymlaen â ni, felly, at yr ail eitem ar yr agenda, sef, i gychwyn ein sesiwn gyntaf ni o dystiolaeth ar ddatgarboneiddio'r sector tai preifat. Mi fydd Aelodau'n cofio ein bod ni fel pwyllgor, wrth gwrs, wedi cytuno ar ddechrau'r chweched Senedd yma, i gynnal ymchwiliad aml-gam ar ddatgarboneiddio tai presennol yng Nghymru, ac yn dilyn rhywfaint o waith cwmpasu cychwynnol, rŷn ni wedi dewis blaenoriaethu tri maes o fewn y cyd-destun hwnnw, sef, tai yn y sector breifat, ariannu ôl-osod, a sgiliau a'r gadwyn gyflenwi. Ar gyfer y cyfnod nesaf yn ystod y tymor yma, rŷn ni'n canolbwyntio ar dai yn y sector breifat. I lywio'r gwaith yna, fe gynhalion ni ymgynghoriad cyhoeddus dros yr haf. Mi gawson ni ryw 32 o ymatebion, ac mae'r tîm ymgysylltu â dinasyddion y Senedd wedi cwrdd â landlordiaid o'r sector breifat a pherchnogion tai i gofnodi eu barn nhw am ôl-osod tai. Wrth gwrs, mi fydd yr hyn sydd wedi'i gasglu yn y sesiynau hynny yn cyfrannu at ein gwaith ni. Ond rŷn ni yma, wrth gwrs, i glywed tystiolaeth lafar heddiw, gan gychwyn gyda thri thyst sy'n ymddangos o'n blaenau ni. Dwi eisiau estyn croeso cynnes i Dr Donal Brown, sy'n gyfarwyddwr cynaliadwyedd gyda Sustainable Design Collective Ltd; Rhiannon Hardiman, ysgogwr newid - natur, newid hinsawdd a datgarboneiddio - gyda Swyddfa Comisiynydd Cenedlaethau'r Dyfodol Cymru; a hefyd yn ymuno â ni'n rhithiol, Chris Jofeh, cadeirydd y grŵp gweithredu annibynnol Llywodraeth Cymru ar ddatgarboneiddio tai presennol. Croeso i'r tri ohonoch chi. Mi awn ni'n syth i mewn i gwestiynau, os cawn ni, ac mi wnaf i ofyn, os y caf i, os ydych chi'n ystyried - . O, fe ddylwn i ddweud ar y dechrau does dim disgwyl i chi i gyd i ateb bob cwestiwn; mae gennym ni nifer fawr o gwestiynau yn yr amser prin sydd gennym ni gyda chi. Yn amlwg, dangoswch eich llaw neu rywbeth os ydych chi eisiau dod i mewn ar rywbeth, ond peidiwch â theimlo bod yn rhaid i chi ymateb i bob un - mi fydd rhai cwestiynau'n fwy perthnasol i rai penodol ohonoch chi. Ond efallai rhywbeth cyffredinol, i gychwyn, gen i, jest i ofyn os ydych chi yn ystyried bod strategaeth genedlaethol hirdymor am ddatgarboneiddio tai ar draws y tenures i gyd yn hanfodol i yrru cynnydd yn y maes yma, a'ch barn chi ynglŷn ag i ba raddau y mae'r Llywodraeth yn gwneud hynny, wedi gwneud hynny, neu pam nad ŷm ni wedi gweld rhywbeth i'r perwyl yma hyd yma. Mae'n gwestiwn eithaf eang i ddechrau, ond dwi'n meddwl y pwynt yw bod angen strategaeth efallai, yndê.