Iraqi teenagers swim in waste water from the nearby Tuweitha nuclear facility near Baghdad, Iraq on May 28, 2003. Iraqis are consuming contaminated water unaware of the dangerous pollutants that can cause severe ill health. (Photo by Damir Sagolj/Reuters)

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 jogger is seen running at Hampstead Heath with London in the background on June 1, 2021. Britain sees temperatures increasing for the second day in a row after the mercury hit 25C (77 Fahrenheit) for the warmest day of the year so far on Bank Holiday Monday. (Photo by Joshua Bratt/London News Pictures)

A fan of Colombia cheers prior to a qualifying soccer match between for the FIFA World Cup Qatar 2022 Colombia and Chile in Barranquilla, Colombia, Friday, September 10, 2021. (Photo by Fernando Vergara/AP Photo)

Revelers perform during the Myths and Legends parade in Medellin, Antioquia department, Colombia on December 8, 2021. (Photo by Joaquin Sarmiento/AFP Photo)

A woman dressed in traditional costumes jumps over a bonfire to commemorate the day of Santa Agueda in Andavias, Spain, on February 6, 2022. In the province of Zamora it is quite a tradition, the women take over the city and the towns to gain control in the province, the councils give them the batons as a sign of authority, they celebrate around 7 days of festivity where they dance, eat, live the festival and honor Santa Agueda. (Photo by Manuel Balles/ZUMA Press Wire/Rex Features/Shutterstock)

Anti government protesters splash water on each other as they celebrate the traditional Songkran new year festival during a protest in Bangkok, Thailand, 13 April 2022. (Photo by Diego Azubel/EPA/EFE)

Shooting star by Tony Wu, US/Japan. Winner, underwater. The electrifying reproductive dance of a giant sea star. As the surrounding water filled with sperm and eggs from spawning sea stars, Wu faced several challenges. Stuck in a small, enclosed bay with only a macro lens for photographing small subjects, he backed up to squeeze the undulating sea star into his field of view. The dancing posture of spawning sea stars rising and swaying may help release eggs and sperm, or may help sweep the eggs and sperm into the currents where they fertilise together in the water. Kinko Bay, Japan. (Photo by Tony Wu/Wildlife Photographer of the Year)