The European Union hopes to restore the summer tourism market this year.Credit…Andrea Mantovani for The New York Times The European Union proposed a Covid-19 certificate on Wednesday that would allow people to travel more freely, a move aimed at saving the summer tourist season for member states that depend on it economically. The proposed document, known as a Digital Green Certificate, would allow residents of member nations to travel at will within the bloc if they have proof of Covid-19 vaccination, a negative test result or a documented recovery from the coronavirus. The certificates would be free and would be available in digital or paper format. “The Digital Green Certificate will not be a precondition to free movement, and it will not discriminate in any way,” said Didier Reynders, the bloc’s top official for justice, adding that the aim was to […]