An aerial view shows women swimming in the Yenisei River on a hot summer day, with the air temperature at about 32 degrees Celsius (89.6 degrees Fahrenheit), outside Krasnoyarsk, Siberia, Russia, June 28, 2017. (Photo by Ilya Naymushin/Reuters)





An aerial view shows single-handed dinghy boats of the Optimist international class around a motorboat of a coach during a training session of young yachtsmen in the Yenisei River in Krasnoyarsk, Russia, June 6, 2017. (Photo by Ilya Naymushin/Reuters)





A sunken boat is pictured in an aerial photo in the Keys in Marathon, Florida, September 13, 2017. (Photo by Carlo Allegri/Reuters)





An aerial view of an ice carousel cut out on a frozen lake by Janne Kapylehto using a chainsaw, in Vanhankaupunginlahti, Helsinki, January 16, 2017. (Photo by Martti Kainulainen/Reuters/Lehtikuva)





Confiscated sharing bicycles of different brands are seen at a parking lot of Huangpu District Vehicle Management Company in Shanghai, China, March 1, 2017. (Photo by Reuters/China Stringer Network)





Cherry blossom is seen along a road in Gui'an new district, Guizhou province, China, March 27, 2017. (Photo by Reuters/China Daily)





Oil that leaked from a small oil tanker that sank on September 10, is seen next to sunbeds and folded umbrellas on the beach of Agios Kosmas at the riviera in Athens, Greece, September 17, 2017. (Photo by Giorgos Moutafis/Reuters)





Buildings and construction sites are seen among fog in Rizhao, Shandong province, China, June 2, 2017. (Photo by Reuters/China Stringer Network)





Italian Carabinieri officers ride their horses during the parade before the fifth practices for the Palio of Siena, Italy, August 15, 2017. (Photo by Stefano Rellandini/Reuters)





Burning forest is seen during “Operation Green Wave” conducted by agents of the Brazilian Institute for the Environment and Renewable Natural Resources, or Ibama, to combat illegal logging in Apui, in the southern region of the state of Amazonas, Brazil, August 4, 2017. (Photo by Bruno Kelly/Reuters)





An aerial view shows combines harvesting wheat in a field of the Iskra farm outside the Siberian village of Kulun, the Uzhursky district of Krasnoyarsk region, Russia, September 28, 2017. (Photo by Ilya Naymushin/Reuters)





Nearly 2,000 people float in a line setting a new Guinness world record for the most people floating while holding hands in Lake Epecuen, a salty lake, near Carhue, Argentina, January 29, 2017. (Photo by Prensa Municipio/Adolfo Alsina/Reuters)





An aerial view shows the area affected by a fire in the Siberian town of Kansk in Krasnoyarsk region, Russia, May 27, 2017. (Photo by Ilya Naymushin/Reuters)





Gale force winds blow back the waves at Church Rock on Broad Haven Beach in Pembrokeshire, Wales, Britain, February 23, 2017. (Photo by Rebecca Naden/Reuters)





Waves hit a train during heavy seas and high winds in Dawlish in southwest Britain, February 2, 2017. (Photo by Toby Melville/Reuters)





The sky turns red over buildings in Canary Wharf as dust from the Sahara carried by Storm Ophelia filters sunlight over London, Britain, October 16, 2017. (Photo by Tom Jacobs/Reuters)





Polluted water in the river Ganges is seen in Kanpur, India, April 4, 2017. (Photo by Danish Siddiqui/Reuters)





A plume of smoke above Mount Agung volcano is illuminated at sunset as seen from Amed, Karangasem Regency, Bali, Indonesia, November 30, 2017. (Photo by Darren Whiteside/Reuters)





Natan Cabral, 5, stands on the cracked ground of the Boqueirao reservoir in the Metropolitan Region of Campina Grande, Paraiba state, Brazil, February 13, 2017. (Photo by Ueslei Marcelino/Reuters)





A dead whale is seen on the shore of Ipanema beach in Rio de Janeiro, Brazil, November 15, 2017. (Photo by Pilar Olivares/Reuters)





A British Airways airplane flies near a rainbow on its way to Heathrow Airport in London, Britain, July 23, 2017. (Photo by Kevin Coombs/Reuters)





The Aurora Borealis (Northern Lights) lights up the sky near the village of Pallas (Muonio region) of Lapland, Finland September 8, 2017. (Photo by Alexander Kuznetsov/Reuters/All About Lapland)





Julia Lu, 5, (L) and Amy Liu, 5, walk through a massive spring wildflower bloom caused by a wet winter in Lake Elsinore, California, March 14, 2017. (Photo by Lucy Nicholson/Reuters)





People wearing masks dance at a square among heavy smog during a polluted day in Fuyang, Anhui province, China, January 3, 2017. (Photo by Reuters/China Daily)





Smog is seen over the city during hazy weather in Tianjin, China, January 3, 2017. (Photo by Reuters/China Stringer Network)