Commuters walk up the redesigned subway stairs at the Tanjong Pagar subway station on August 23, 2011 in Singapore. The subway stairs have been repainted in bright colours and slogans encouraging people to take the stairs, by way of promoting fitness in the city. (Photo by Chris McGrath/Getty Images)

The Rainbow Warrior III, the newest ship of the enivornmental conservation organization Greenpeace, makes its way to port on the Elbe River on October 20, 2011 in Hamburg, Germany. The Rainbow Warrior III, 53 meters long, designed by Greenpeace and built in Poland and Germany, is a EUR 23 million project completed last week. (Photo by Sean Gallup/Getty Images)

Madison Sager (L), Jocelyn Sager and Susan Ihry (C) make their way through the West Acres Mall JCPenney store after 3 a.m. on November 25, 2011 in Fargo, North Dakota. The trio began shopping at 10 p.m. the night before at Walmart. (Photo by Chris Franz/Getty Images)

Men dressed as Vikings lead the torchlight procession as it makes its way along Princess Street for the start of the New Year celebrations December 30, 2011 in Edinburgh, Scotland. Thousands of people joined in the torchlight procession, which is followed by the burning of a Viking long ship, to mark the start of Edinburgh's Hogmanay celebrations. (Photo by Jeff J. Mitchell/Getty Images)

Hooded torch bearers lead the winter procession through the snow on February 4, 2012 in Huddersfield, England. Imbolc is a pagan festival that marks the half way point between the winter solstice and the spring equinox. Imbolc festivals celebrates the awakening of the land and the growing power of the Sun. (Photo by Bethany Clarke/Getty Images)

A torch bearer poses for photographs during the Olympic Torch Relay Celebration event on July 21, 2021 in Tokyo, Japan. As the Olympic torch relay makes its way around Tokyo, public relays have been cancelled in favour of daily ceremonies held behind closed doors, as authorities act to avoid large gatherings while the country endures a fourth wave of coronavirus. (Photo by Yuichi Yamazaki/Getty Images)

A woman rides an electric bicycle on her way as she wears a sunscreen mask towards off strong ultraviolet rays in Fuyang, China on August 14, 2022. The Central Meteorological Observatory of China issued a high-temperature red warning. It is expected that the maximum temperature in some parts of China will reach above 40°C on August 14. (Photo by Sheldon Cooper/SOPA Images/Rex Features/Shutterstock)