Young women wearing facemasks and traditional costumes of Song dynasty and Tang dynasty are seated on a bench in a park next to the East Lake in Wuhan, in China’s central Hubei province on May 17, 2020. The Guardian picture desk has chosen on December 17, 2020, the AFP photojournalist Hector Retamal as “Agency Photographer of the Year 2020” for his coverage of the novel coronavirus Covid-19 pandemic in Wuhan, China. (Photo by Hector Retamal/AFP Photo)

Noah, 10, cools himself off in his garden during hot weather in Hertford, Britain, June 25, 2020. The UK is experiencing a summer heatwave, with temperatures in many parts of the country expected to rise above 30°C and weather warnings in place for thunderstorms at the end of the week. (Photo by Andrew Couldridge/Reuters)

An Iraqi Kurdish Peshmerga female officer bites a Rabbit while demonstrating skills during a graduation ceremony in the Kurdish town of Soran, about 100 kilometres northeast of the capital of Iraq's autonomous Kurdish region Arbil, on February 12, 2020. (Photo by Safin Hamed/AFP Photo)

A disinfection worker wearing protective gear sprays disinfectant to a medical worker after they perform swab tests for the coronavirus disease (COVID-19) during mass test at Islamic boarding school of Sunan Pandanaran on July 29, 2020 in Yogyakarta, Indonesia. Indonesia is struggling to contain hundreds of new daily cases of coronavirus amid easing of rules to allow economic activity to resume, has reported more than 100,000 coronavirus cases and with at least more 4,900 recorded fatalities. (Photo by Ulet Ifansasti/Getty Images)

A Sotheby's employee poses with a “Return of the Jedi” promotional C-3PO Helmet 1983, estimated at £15,000-£25,000 created by George Lucas' visual effects company during a photocall at Sotheby's in London, Britain on December 6, 2019. (Photo by Thomas Mukoya/Reuters)

A man prepares to tie a black ribbon next to a makeshift memorial during a prayer ceremony for the victims of the 2004 tsunami on the 16th anniversary of the disaster, at Marina Beach in Chennai, India, December 26, 2020. (Photo by P. Ravikumar/Reuters)

A National Guard member mounts guard as a man exercises during a rally against George Floyd death in Minneapolis police custody, in Los Angeles, California, U.S., June 2, 2020. (Photo by Mike Blake/Reuters)

New Yorkers celebrate Joe Biden winning the presidency at Washington Square Park on November 7, 2020. (Photo by Amy Lombard for NBC)