This photo taken on May 17, 2019 shows rough rubies displayed at the gems market in Mogok town, north of Mandalay. Burrowing deep underground, thousands of informal miners risk their lives to find gleaming red gems as a law change spurs opportunity in Myanmar's “land of rubies”. (Photo by Ye Aung Thu/AFP Photo)

Empty gloves are seen at the side of a tray of Maryland Blue Crabs at Maine Avenue Fish Market which is the United States oldest fish market in continual operation since 1805, in Washington, U.S., May 6, 2019. (Photo by Clodagh Kilcoyne/Reuters)

A Chinese ethnic Lisu honey hunter holds a large piece of wax from a hive while gathering wild cliff honey in a gorge on May 10, 2019 near Mangshi, in Dehong prefecture, Yunnan province China. (Photo by Kevin Frayer/Getty Images)

A Sudanese man plays a local music instrument ahead of a meeting with Mohamed Hamdan Dagalo, also known as Himediti, deputy head of Sudan's ruling Transitional Military Council (TMC) and commander of the Rapid Support Forces (RSF) paramilitaries, in the capital Khartoum on June 18, 2019. (Photo by AFP Photo/Stringer)

Iranian women sit in a bus in the capital Tehran on June 25, 2019. Iran's President Hassan Rouhani said today that new US sanctions against senior Iranian officials including top diplomat Mohammad Javad Zarif showed Washington is “lying” about an offer to negotiate. (Photo by Atta Kenare/AFP Photo)

People wear clothing to protect them from the heat while riding along a street in Hanoi, Vietnam, 24 April 2019. North and central Vietnam was recently affected by extreme hot weather, with the highest temperatures reaching over 40 degrees Celcius, according to the National Centre for Hydro-meteorological Forecasting. (Photo by Luong Thai Linh/EPA/EFE)

In this photo released by the Newton Fire department, a juvenile raccoon looks out from a grate after getting stuck in Newton, Massachusetts on August 1, 2019. The fire department was able to rescue the raccoon and free him from the grate. (Photo by HO/Newton Fire Department/AFP Photo)

Men push a car stucking in the mud on a motorway in Nimba County, Liberia, 28 July 2019. Most highway roads in the rural parts of the country are unpaved. The government of President George Weah has promised to build roads to connect all big cites of Liberia. (Photo by Ahmed Jallanzo/EPA/EFE)