Nyibol Lual, 13 years old, helps her family to prepare the land for cultivation on May 31, 2017, in Panthau, Northern Bahr al Ghazal, South Sudan. The family has a small land where they cultivate sorghum. An estimated 63 per cent of the population in Northern Bahr al Ghazal is experiencing severe food insecurity, according to the latest Integrated Food Security Phase Classification (IPC) report. The situation is particularly bad in Aweil West and Aweil South counties, where the exhaustion of household food stocks and growing dependence on financially inaccessible markets have left the population facing Emergency levels of food insecurity. (Photo by Albert Gonzalez Farran/AFP Photo)

A police officer stands at a police cordon near the scene of a terror attack in London, U.K., on Sunday, June 4, 2017. A van swerved into Saturday-night crowds on London Bridge, before three men got out and went on a stabbing rampage through nearby bars. (Photo by Luke MacGregor/Bloomberg)

Princess Charlene poses after the arrival of the Riviera Water Bike Challenge in support of the Princess Charlene of Monaco Foundation, in Nice, France, June 4, 2017. (Photo by Eric Gaillard/Reuters)

A man takes a picture of sea spray as storms hit Cape Town, South Africa, June 7, 2017. (Photo by Mike Hutchings/Reuters)

Models prepare backstage ahead of the “Romance Was Born” show during Afterpay Fashion Week Australia Resort 22 Collections at Carriageworks on May 31, 2021 in Sydney, Australia. (Photo by Jessica Hromas/The Guardian)

Wearing a mariachi hat, candidate Clara Brugada, who is running as a delegation leader under the ruling party Morena, smiles as she greets supporters on the last day of campaigning ahead of the June 6 mid-term elections, in the Iztapalapa borough of Mexico City, Wednesday, June 2, 2021. (Photo by Marco Ugarte/AP Photo)

Sunbathers enjoy the beach next to a photograph by Taiwanese Lynn Wu during the photo festival “Women Exhibit” in Houlgate, north-western France, on June 6, 2021. The 4th edition of the photo festival, entirely dedicated to professional women photographers with 14 open-air exhibitions, takes place from June 1 till August 8, 2021. (Photo by Joel Saget/AFP Photo)

Activists from climate action group Ocean Rebellion demonstrate in St Ives Harbour, ahead of the G7 summit, in St Ives, Cornwall, Britain, June 9, 2021. (Photo by Tom Nicholson/Reuters)