Women dressed as nuns pose for pictures during Halloween celebrations in the Shibuya district in Tokyo, Japan October 31, 2015. (Photo by Thomas Peter/Reuters)

An employee sorts waste at the Wecycler recycling centre in Ebutte Meta district in Lagos, Nigeria July 28, 2016. (Photo by Akintunde Akinleye/Reuters)

The Canary Wharf financial district stands in London, Britain on August 11, 2019. (Photo by Simon Dawson/Reuters)

In this Sunday, November 16, 2014 photo, Nepalese women pick tea at a tea garden of Kanyam in Illam district, around 500 kilometers (310 miles) from Katmandu, Nepal. Illam is a hilly district of tea gardens and estates in eastern Nepal's Himalayan region with one of its largest and most productive tea estate being Kanyam estates. The district produces orthodox tea, hand-processed or machine rolled, which is generally exported to international markets, specially Europe and the United States. Most of the tea pickers here are paid 186 Nepalese Rupees (US $ 2) for 8 hours of work everyday. (Photo by Niranjan Shrestha/AP Photo)

Food affected villagers cross flood waters through a bamboo bridge in the flood affected Morigaon district of Assam state, India, 05 July 2016. Continuous rain since last couple of days inundated six districts of Assam effecting more than 100 thousand people in the second wave of floods in Assam state. (Photo by EPA/Stringer)

A general view of Hong Kong's business district is seen Thursday, August 1, 2013. (Photo by Vincent Yu/AP Photo)

A child sleeps under a table at the Jorkpan market in Sinkor district in Monrovia, Liberia on May 2, 2016. (Photo by Marco Longari/AFP Photo)

A man carrying a sailfish walks through Hamarweyne district in South Mogadishu on March 25, 2015. (Photo by Carl De Souza/AFP Photo)