Climate-change activists have chained themselves together on the northern runway at London’s Heathrow airport, causing flight delays and cancellations.

Heathrow airport.
Heathrow airport.

The demonstrators are protesting against runway expansion, after a recent government-commissioned report recommended that the airport build a third runway. The group – one of them dressed as a polar bear – cut through a perimeter fence at 3.30am. Read more: theguardian.com

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