A woman wearing a scarf to cover her face looks on as she waits for a passenger bus on a smoggy morning in New Delhi, India, November 8, 2017. The Great Smog of Delhi is an ongoing severe air-pollution event in New Delhi and adjoining areas in the National Capital Territory of India, in November 2017. Air pollution at this time peaked on both PM 2.5 and PM 10 levels. It has been reported as one of the worst levels of air quality in Delhi since 1999. (Photo by Saumya Khandelwal/Reuters)

A horse buggy is headed for the stables on a foggy night in New Orleans, Monday, December 18, 2017. (Photo by David Grunfeld/NOLA.com The Times-Picayune via AP Photo)

Beyonce and Jay-Z leave Rihanna's 3rd Annual Diamond Ball at Cipriani Wall Street on September 14, 2017 in New York City. (Photo by James Devaney/GC Images)

Thousands of heavy-duty trucks loaded with coal are lined up for up to 130 kilometres from the Mongolia-China border on a sole road in the Gobi desert, Mongolia, October 29, 2017. The journey can take more than a week. (Photo by Bazarsukh Rentsendorj/Reuters)

Nepalese army personnel pay tributes before the body of a person who died of COVID-19 before cremating the same in Kathmandu, Nepal, Monday, August 17, 2020. (Photo by Niranjan Shrestha/AP Photo)

Yanira Villarreal, left, Ayde Choque, center, and Milenda Limachi, wearings masks amid the COVID-19 pandemic and dressed as a “Cholita” pose for a photo with their skateboards during a youth talent show in La Paz, Bolivia, Wednesday, September 30, 2020. Young women called “Skates Imillas”, using the Aymara word for girl Imilla, use traditional Indigenous clothing as a statement of pride of their Indigenous culture while playing riding their skateboards. (Photo by Juan Karita/AP Photo)

An undated handout photo made available by the Zerynthia Association shows the pupa of an amicta moneiba, a recently discovered species of moth endemic to La Gomera and El Hierro islands in the Canary Islands, Spain (issued 01 July 2020), as those two islands pulled apart from the rest of the Canary Islands 2.5 million years ago. The Institute of Evolutionary Biology of the Spanish National Research Council (CSIC) and the Zerynthia Association have recently discovered two new moth species in El Hierro and La Gomera. (Photo by Yeray Monasterio/Zerynthia/EPA/EFE)

A voter wearing protective face mask shows off her finger marked with ink indicating she voted as she leaves a polling station Sunday, November 8, 2020, in Yangon, Myanmar. Voting was underway in Myanmar’s elections on Sunday, with the party of Nobel Peace Prize laureate Aung San Suu Kyi heavily favored to retain power it had wrestled from the powerful military five years ago. (Photo by Thein Zaw/AP Photo)