Bydd y Grŵp yn cynnig arbenigedd a gwybodaeth mewn sawl maes amgylcheddol gan gynnwys yr amgylchedd ac ecoleg gydag arbenigedd yng nghyd-destun Aber Afon Hafren; peirianneg hydro a pheirianneg sifil ac asesiadau amgylcheddol dŵr yng nghyd-destun Aber Afon Hafren ac yr economi ac economeg gymdeithasol yng nghyd-destun trawsffiniol De-ddwyrain Cymru/De-orllewin Lloegr. Bydd hefyd yn darparu arbenigedd ym maes iechyd y cyhoedd, cynhyrchu ynni niwclear ac ynni ar raddfa eang a sectorau a phrosesau rheoleiddiol mewn cyd-destun trawsffiniol.
The group will provide expertise and knowledge in a number of environmental areas including environment and ecology with expertise in a Severn Estuary context; hydro and civil engineering and water environmental assessments in a Severn Estuary context and economy and socioeconomics in a South East Wales/South West England context. It will also provide expertise in public health, nuclear and large-scale energy production and regulatory sectors and processes.