Ballerina Kira Hilli of the Netherlands National Ballet dances in a tutu with a diameter of 3 meters for a video made for the 1.5 meter society, on the Prinsengracht in Amsterdam, The Netherlands, 04 June 2020 (issued on 12 June 2020). The so-called social distance tutu is made of denim fabric, specially made for the Safe Distance Ballet. (Photo by Remko de Waal/EPA/EFE)

A woman in a face mask dances inside the club on the opening of the summer season for “Villa delle Rose”, one of the most famous clubs on the Adriatic Coast on June 20, 2020 in Rimini, Italy. The Villa delle Rose is among the first dance clubs to reopen in the Adriatic Riviera after the Covid-19 pandemic. (Photo by Max Cavallari/Getty Images)

Parade goers draped in American flags walk down the street before a Fourth of July parade begins Saturday, July 4, 2020, in Bristol, R.I. The town, which lays claim to the nation's oldest Independence Day celebration in the country, held a vehicle-only scaled down version of its annual parade Saturday due to the coronavirus pandemic. (Photo by David Goldman/AP Photo)

Policemen guard Poland's Supreme Court as a protester lies on the pavement in Warsaw, Poland, on Thursday, April 22, 2021. A disputed disciplinary body within Poland's Supreme Court is examining a motion that could result in the arrest of a judge who has become a symbol of the fight for an independent judiciary. (Photo by Czarek Sokolowski/AP Photo)

Lightning illuminates a thundercloud as a storm front hits the North Sea region near Westerhever, northern Germany, on August 11, 2014. (Photo by Daniel Reinhardt/AFP Photo/DPA)

An alpaca chewing a leaf is pictured on November 18, 2014 in the zoo of Frankfurt am Main, Germany. (Photo by Frank Rumpenhorst/AFP Photo/DPA)

Kashir Mir, 34, poses for a photograph at his workplace, Juliet Wig Shop, in the London constituency of Brent Central, Britain, April 13, 2015. Mir, who was born in Pakistan, said: “I will vote but it's a secret. I also hope they can manage immigration better as I have been stopped and interviewed for hours returning from Pakistan. I'm an honest man, working here and paying my tax”. Brent, a northwest London neighbourhood that's home to Wembley football stadium, is among the most ethnically diverse areas in the United Kingdom. As the country approaches a closely fought election on May 7, Reuters photographer Eddie Keogh visited shopkeepers to get their views on the poll. (Photo by Eddie Keogh/Reuters)

A reef shell lies on a beach as the sun sets on Lady Elliot Island located north-east of the town of Bundaberg in Queensland, Australia, June 10, 2015. UNESCO World Heritage delegates recently snorkelled on Australia’s Great Barrier Reef, thousands of coral reefs, which stretch over 2,000 km off the northeast coast. Surrounded by manta rays, dolphins and reef sharks, their mission was to check the health of the world's largest living ecosystem, which brings in billions of dollars a year in tourism. Some coral has been badly damaged and animal species, including dugong and large green turtles, are threatened. UNESCO will say on Wednesday whether it will place the reef on a list of endangered World Heritage sites, a move the Australian government wants to avoid at all costs, having lobbied hard overseas. Earlier this year, UNESCO said the reef's outlook was “poor”. (Photo by David Gray/Reuters)