Unesco officials recommend adding Wiltshire stone circle amid fears road scheme would compromise its integrity

Stonehenge is likely to be put on a list of world heritage sites that are in danger because of the plan to build a tunnel under the precious landscape.

Unesco officials have recommended adding the Wiltshire stone circle and the area around it to the list because of concerns that the tunnel would “compromise the integrity” of one of the Earth’s great prehistoric sites.

Proliferation of airport projects is at odds with concentration of air passenger traffic

Last Thursday the governor of Zamfara, one of Nigeria’s poorest states, held a ceremony to mark the start of construction on an international airport in the state capital Gusau.

“The economic benefits and multiplier effects … are quite enormous,” Dauda Lawal said. “The airport will have a tremendous impact on the ease of doing business and other social interactions [here].”

We know turbulence is a common part of flying – but are some routes more prone? And where is it the worst? Turbulence is the leading cause of in-flight injuries to crew and passengers and after the fatal Singapore Airlines incident and injuries to passengers above Turkey on a Qatar Airways flight, you might be wondering if flights are about to get bumpier. Incidents of severe turbulence are on the rise – increasing by 55% between 1979 and 2020 – and the climate crisis is thought to be a responsible factor

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• What causes turbulence on flights and which routes around the world are most affected?