The gorge is considered one of south Wales' most important "environmental and ecologically sensitive areas", according to the Welsh Government.

BBC: ?150m A465 Heads of the Valleys road project awarded

We understand the concern -- the concern about fisheries area, the concern about other commercial activities that happen near sensitive environmental areas are involved.

WHITEHOUSE: Press Briefing on Oil Spill in Gulf of Mexico

For many in the conservation and development communities who worry about the environmental and social impacts of the extractive industry and who have looked at the challenges of operating in sensitive areas like the Niger Delta and northern Alaska, the news of gas companies coming to northern Mozambique is not entirely welcome.

FORBES: Producing Gas and Protecting Biodiversity in Mozambique