"The A465 is a crucial artery of our transport network and the principal road link between west Wales and the Midlands, " he said.

BBC: Safety hopes in ?150m Heads of the Valleys road plan

Transport Minister Carl Sargeant called it "a crucial artery of our transport network and the principal road link between west Wales and the Midlands".

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

Our principal air-link to the orient was through Minneapolis!

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More controversially, Dr Epstein proposes a link between an increase in emissions of carbon dioxide, the principal greenhouse gas, and the rise of asthma.

ECONOMIST: Climate change