An anti-government demonstrator throws back a tear gas canister during a protest march in Hong Kong, China, October 20, 2019.

A demonstrator fires a homemade weapon during a protest against Ecuador's President Lenin Moreno's austerity measures in Quito, Ecuador October 12, 2019.

The House Committee on Oversight and Reform room displays a memorial for deceased committee Chairman Rep. Elijah Cummings (D-MD) on Capitol Hill, in Washington, U.S., October 17, 2019.

A giraffe walks near the elevated railway line that allows movement of animals below the Standard Gauge Railway (SGR) line linking Nairobi and Naivasha inside the Nairobi national park in Nairobi, Kenya October 16, 2019.

A wind driven wildfire continues to burn in Canyon Country north of Los Angeles, California, U.S. October 25, 2019.

Demonstrators carry national flags as riot police stand guard behind barbed wire during an anti-government protest in Beirut, Lebanon October 19, 2019.

Belarusian ornithologist Vladimir Ivanovski, 72, stands on a tree as he builds an artificial nest for birds of prey from tree branches, in a marsh near the village of Kazyany, Belarus October 20, 2019.

Japan's Prime Minister Shinzo Abe bows in front of Emperor Naruhito during a ceremony to proclaim his enthronement to the world, called Sokuirei-Seiden-no-gi, at the Imperial Palace in Tokyo, Japan, October 22, 2019.

Swiss scientist Didier Queloz poses for a picture at a news conference, following the announcement he wins the 2019 Nobel Prize for Physics, in London, Britain, October 8, 2019.

Ngiyaampaa girl Punta Williams poses for photographs on the dry riverbed before performing at Yaama Ngunna Baaka Corroboree Festival on the banks of the Darling River in Wilcannia, New South Wales, Australia, October 1, 2019. Recently, Aboriginal communities held special festivals along the river "to heal the Barka". Ochre-painted dancers performed around fires at dusk, revering the river but also seeking to draw attention to its plight. REUTERS/Tracey Nearmy

A convoy of U.S. vehicles is seen after withdrawing from northern Syria, in Erbil, Iraq October 21, 2019.

An unidentified woman from the audience joins the models for the final walk of Chanel Spring/Summer 2020 women's ready-to-wear collection show during the Paris Fashion Week in Paris, France, October 1, 2019.

Kevin Macaulay applies an antibiotic ointment to the surface of an Orbicella Faveolata (Mountainous Star Coral) affected by Stony Tissue Loss Disease (SCTLD) on a dive near Key West, Florida, U.S. September 8, 2019.

A child and climate change activists attend the Extinction Rebellion protests on Copacabana beach in Rio de Janeiro, Brazil October 7, 2019.

A rainbow is seen as demonstrators protest against Chile's state economic model in Santiago, Chile October 24, 2019.

Sailing boats gather at the start of the Barcolana regatta in front of Trieste harbour, Italy, October 13, 2019.

A subway ticket office is seen on fire during a protest against the increase in the subway ticket prices in Santiago, Chile, October 19, 2019 REUTERS/Ramon Monroy

Demonstrators sit atop a statue on Martyrs' square during ongoing anti-government protests in downtown Beirut, Lebanon, October 26, 2019.

Tourists climb Uluru, formerly known as Ayers Rock, at Uluru-Kata Tjuta National Park in the Northern Territory, Australia, October 25, 2019. Friday is the last day people will be able to climb Uluru. AAP Image/Lukas Coch/via REUTERS

Kenya's Eliud Kipchoge, the marathon world record holder, crosses the finish line during his attempt to run a marathon in under two hours in Vienna, Austria, October 12, 2019.

A hiker walks in the Zillertal Alps during an autumn day near the village of Ginzling, Austria, October 15, 2019.

Late Spanish dictator Francisco Franco's relatives carry his coffin after the exhumation at The Valle de los Caidos (The Valley of the Fallen) in San Lorenzo de El Escorial, Spain, October 24, 2019. Juan Carlos Hidalgo/Pool via REUTERS

A tuk-tuk drives away from tear gas fired by Iraqi security forces during a protest over corruption, lack of jobs, and poor services, in Baghdad, Iraq October 26, 2019.

A police vehicle burns during a protest against Ecuador's President Lenin Moreno's austerity measures in Quito, Ecuador, October 7, 2019.

Demonstrators clash with security forces during a protest against Chile's state economic model in Valparaiso, Chile October 24, 2019.

An Israeli border policeman scuffles with demonstrators during a Palestinian protest against Jewish settlements in Turmus Ayya village near Ramallah in the Israeli-occupied West Bank, October 17, 2019.

A wounded girl is treated in the town of Tal Abyad, Syria October 20, 2019.

Director Martin Scorsese and cast members Al Pacino and Robert De Niro pose as they arrive for the screening of "The Irishman" during the 2019 BFI London Film Festival at the Odeon Luxe Leicester Square in London, Britain October 13, 2019.

Britain's Prince William and Catherine, Duchess of Cambridge, arrive by Tuk Tuk as they attend a reception hosted by the British High Commissioner to Pakistan, Thomas Drew, at the Pakistan National Monument in Islamabad, Pakistan October 15, 2019. Chris Jackson/Pool via REUTERS

Nidhi Bhattacharjee, 5, dressed as a Kumari, yawns as she is worshipped by Hindu priests (unseen) as part of a ritual during the Durga Puja festival celebrations in Agartala, India, October 6, 2019.

Soccer Football - Euro 2020 Qualifier - Group H - France v Turkey - Stade De France, Saint-Denis, France - October 14, 2019 Turkey players salute after Kaan Ayhan celebrates scoring their first goal.

Artistic Gymnastics - 2019 World Artistic Gymnastics Championships - Women's All Around Final - Hanns-Martin-Schleyer-Halle, Stuttgart, Germany - October 10, 2019 Simone Biles of the U.S. in action on the uneven bars apparatus.

Virgin's Richard Branson kisses the ground as he lands at the Ben Gurion international airport near Tel Aviv, Israel, October 23, 2019

Democratic presidential candidates former Vice President Joe Biden and Senator Elizabeth Warren pose together at the start of the fourth U.S. Democratic presidential candidates 2020 election debate at Otterbein University in Westerville, Ohio U.S., October 15, 2019.

John Hamilton, vice president and chief engineer of Boeing Commercial Airplanes, and Boeing Chief Executive Dennis Muilenburg look back at family members holding photographs of Boeing 737 MAX crash victims as Hamilton and Muilenburg testify before a Senate Commerce, Science and Transportation Committee hearing on “aviation safety” and the grounded 737 MAX after two deadly 737 MAX crashes killed 346 people, on Capitol Hill in Washington, U.S., October 29, 2019.

Cartel gunmen are seen outside during clashes with federal forces following the detention of Ovidio Guzman, son of drug kingpin Joaquin "El Chapo" Guzman, in Culiacan, Sinaloa state, Mexico October 17, 2019. REUTERS/Stringer

A Bolivian farmer prepares coca leaves for sale one day before presidential elections in the region where presidential reelection candidate Evo Morales of the Movement Toward Socialism (MAS) party began his political career in the late 1980s, as leader of the coca growers' union, in Villa Tunari at the Chapare region, Bolivia October 19, 2019.

A demonstrator hangs off the bumper by his leg as he is run over by a riot police vehicle during a protest against Chile's state economic model in Santiago October 20, 2019.

Liberal leader and Canadian Prime Minister Justin Trudeau and his wife Sophie Gregoire Trudeau wave to supporters after the federal election at the Palais des Congres in Montreal, Quebec, Canada October 22, 2019.

Facebook Chairman and CEO Mark Zuckerberg testifies in front of a projection of a "Zuck Buck" at a House Financial Services Committee hearing examining the company's plan to launch a digital currency on Capitol Hill in Washington, U.S., October 23, 2019.

Turkey-backed Syrian rebel fighters assist their injured fellow fighter near the border town of Tal Abyad, Syria October 24, 2019.

Catalan pro-independence demonstrator runs away from riot police during a protest against police action, in Barcelona, Spain, October 26, 2019.

The sun is seen through a burning structure during the wind-driven Kincade Fire in Healdsburg, California, U.S. October 27, 2019.

An anti-government protester takes cover under an umbrella during a demonstration in Sha Tin district, on China's National Day in Hong Kong, China October 1, 2019.

A woman with traditional cooling-face–powder looks on as she sell fruits and vegetables on a wooden boat at Martapura river in Lok Baintan village near Banjarmasin, South Kalimantan province, Indonesia, September 29, 2019.

A demonstrator runs between burning tires during a curfew, two days after the nationwide anti-government protests turned violent, in Baghdad, Iraq October 3, 2019.

Refugees and migrants arrive on a passenger ferry from the island of Lesbos at the port of Piraeus, Greece, October 7, 2019.

A police officer detains Phil Kingston, 83, who sprayed a stencil slogan on the wall of the building housing the Treasury during the Extinction Rebellion protest in London, Britain October 7, 2019.

Indian Air Force (IAF) soldiers march as advanced light helicopters fly during the Indian Air Force Day celebrations at the Hindon Air Force Station on the outskirts of New Delhi, India, October 8, 2019.

Victor, a nine year old white-tailed eagle equipped with a 360 camera, flies over glaciers and mountains in Chamonix, France, during a preparation flight of the Alpine Eagle Race, an event aiming at raising awareness on global warming, in this still image taken from a video released to Reuters on October 8, 2019. Eagle Wings Foundation/Chopard/Handout via REUTERS

Smoke billows during a fire in an area of the Amazon rainforest near Porto Velho, Rondonia State, Brazil, September 10, 2019. Picture taken September 10, 2019.

A demonstrator throws a chair during a protest against Chile's state economic model in Santiago October 21, 2019.

Universities students hold the Iraqi flag as they take part in a protest over corruption, lack of jobs, and poor services, in Kerbala, Iraq October 28, 2019.

Fireworks explode over Tiananmen Square as performers take part in the evening gala marking the 70th founding anniversary of People's Republic of China, on its National Day in Beijing, China October 1, 2019.

Migrants from Afghanistan, rescued at open sea, are seen onboard a Frontex patrol vessel, at the port of Skala Sikamias, on the island of Lesbos, Greece, October 17, 2019.