Britain’s Heathrow airport says that 2020 was one of its most challenging years, with passenger levels not seen since the 1970s. Announcing its 2020 financial results on Wednesday, the airport said it suffered an annual loss of £2 billion ($2.8 billion) after overall revenue fell by 62 percent as a result of the “devastating impact of COVID-19.” Passenger numbers collapsed to 22.1 million, more than half of whom travelled in January and February 2020, before the first national CCP (Chinese Communist Party) virus lockdown was imposed. “2020 has been one of our most challenging years—but despite £2 billion of losses and shrinking to passenger levels we haven’t seen since the 70s, I am hugely proud of the way that our colleagues have kept our passengers safe and the UK’s hub airport open for vital supplies throughout,” said Heathrow CEO John Holland-Kaye. The airport said it supports Prime Minister Boris Johnson’s …