“We’ve talked over the last decade of gas as a bridging technology, but we’re now seeing what I would call the threat of gas,” James Leape, director-general of WWF International, told the European Future Energy Forum in Geneva, Switzerland.

“Maybe gas does have a role as a bridging fuel. But now you have people like the chief executive of Shell [Peter Voser] talking about gas as a destination fuel.

“Frankly,