Aerial view of high-speed trains sitting parked at a maintenance base on the first day of the 40-day Spring Festival travel rush on January 28, 2021 in Nanjing, Jiangsu Province of China. (Photo by Yang Bo/China News Service via Getty Images)





Parts of the Cerro Lagoon in the Paraguayan city of Limpio show purple water discoloration on December 20, 2020. The assumption is that the incident is related to the nearby Waltrading SA tannery. When water samples are taken on site, the color of the water is due to the presence of heavy metals such as chromium, which are commonly used in the tannery. (Photo by Jorge Saenz/AP Photo)





The Almaty television tower sticks out from a blanket of thick fog in Almaty, Kazakhstan, December 11, 2020. (Photo by Pavel Mikheyev/Reuters)





A vehicle travels along the A110 near Welney in Welney, UK, United Kingdom during flooding due to Seasonal weather on December 15, 2020. (Photo by Terry Harris/Rex Features/Shutterstock)





Cars drive on the road of the “Col du Mollendruz” among snow-covered trees in a forest after snowfall, in the Jura Mountains, in Mont-la-Ville, Switzerland, Sunday, December 6, 2020. (Photo by Laurent Gillieron/Keystone via AP Photo)





An aerial view of China's largest water reed maze, in the Dazong Lake Wetland Park in Yancheng in east China's Jiangsu Province on January 4, 2021. (Photo by Feature China/Barcroft Media via Getty Images)





A Christmas tree vendor is almost sold out on an acre in the outskirts of Frankfurt, Germany, Wednesday, December 16, 2020, on the first day of a nationwide lockdown. (Photo by Michael Probst/AP Photo)





An aerial picture taken with a drone showing people spending time on the Barra de Tijuca beach, in the city of Rio de Janeiro, Brazil, 09 January 2021. Submerged in the second wave of the COVID-19 pandemic, Brazil is working against the clock to be able to start vaccination this month, a campaign that has been delayed and has become a prelude to the Presidential elections in 2022. (Photo by Antonio Lacerda/EPA/EFE)





Aerial photo farmers inspect cages for temporary crabs at an organic crab breeding base in Suqian, East China's Jiangsu Province, December 8, 2020. (Photo by Costfoto/Barcroft Media via Getty Images)





An image taken with a drone shows damaged houses among volcanic ash deposits at the Taal volcano in Batangas, Philippines, 12 January 2021. A year has passed since the Taal volcano erupted, where thousands of residents were displaced after it spewed steam and ash up to one-kilometer high. (Photo by Mark R. Cristino/EPA/EFE)





Aerial view of villagers feeding flocks of ducks at a duck farm on January 23, 2021 in Huai'an, Jiangsu Province of China. (Photo by Wang Kaicheng/VCG via Getty Images)





A tree lies over over a small creek after heavy snow falls in the Taunus region near Frankfurt, Germany, Tuesday, January 26, 2021. (Photo by Michael Probst/AP Photo)





A Maxar's WorldView-2 satellite natural color image shows a closer view of the Kilauea volcano crater before eruption in Hawaii, U.S., December 21, 2020. (Photo by Satellite image ©2020 Maxar Technologies/Handout via Reuters)





Dozens of crocodiles are seen in an inactive farm in the Jordan Valley near the Israeli Petzael settlement in the West Bank on January 18, 2021. Hundreds of crocodiles are stranded in a farm after an Israeli businessmen lost his business as Israel passed a law in 2012 defining the crocodile as a protected animal, and banning raising the animals for sale as meat or merchandise. (Photo by Menahem Kahana/AFP Photo)





The partially frozen Csonakazo Lake in Nagykanizsa, Hungary, 10 December 2020. (Photo by Gyorgy Varga/EPA/EFE)





A rail road crossing is surrounded by flooding caused by rain and melting snow in Nidderau near Frankfurt, Germany, Wednesday, February 3, 2021. (Photo by Michael Probst/AP Photo)