A staff member walks inside a warehouse for fertiliser products at Syngenta Group China's Modern Agriculture Platform (MAP) service centre, during a media tour in Wei county of Handan, Hebei province, China June 11, 2021. Picture taken June 11, 2021. REUTERS/Tingshu Wang

A staff member introduces wheat seeds and fertiliser products developed by Syngenta Group China's Modern Agriculture Platform (MAP) service, at a demonstration field of Syngenta Group China during a media tour in Wei county of Handan, Hebei province, China June 11, 2021. Picture taken June 11, 2021. REUTERS/Tingshu Wang

Workers of a fertiliser company shout slogans during a demonstration against a planned labour bill, during a 24-hour strike in Athens, Greece, June 10, 2021. REUTERS/Alkis Konstantinidis

Workers of a fertiliser company shout slogans during a demonstration in front of the parliament building against a planned labour bill, during a 24-hour strike in Athens, Greece, June 10, 2021. REUTERS/Alkis Konstantinidis

A man holds a flare as workers of a fertiliser company shout slogans during a demonstration against a planned labour bill, during a 24-hour strike in Athens, Greece, June 10, 2021. REUTERS/Alkis Konstantinidis TPX IMAGES OF THE DAY

Workers of a fertiliser company shout slogans during a demonstration in front of the parliament building against a planned labour bill, during a 24-hour strike in Athens, Greece, June 10, 2021. REUTERS/Alkis Konstantinidis

Workers of a fertiliser company shout slogans during a demonstration against a planned labour bill, during a 24-hour strike in Athens, Greece, June 10, 2021. REUTERS/Alkis Konstantinidis

A woman takes a clay "caganer" figure, which symbolises defecation and fertilisation of the earth, and is believed to bring prosperity and luck for the coming year, from a stall at the Santa Llucia Christmas market, during the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, December 17, 2020. REUTERS/ Albert Gea

A couple look at clay "caganers" figures, which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in a stall at the Santa Llucia Christmas market, during the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, December 17, 2020. REUTERS/ Albert Gea

Clay "caganers" figures representing Lionel Messi, Cristiano Ronaldo, Sebastian Vettel, Pau Gasol, Tiger Woods, Fernando Alonso, Marc Marquez Gerard Pique and Sergio Ramos, which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, are displayed in a stall at the Santa Llucia Christmas market, during the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, December 17, 2020. REUTERS/ Albert Gea

Clay "caganers" figures representing The Simpsons, which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, are displayed in a stall at the Santa Llucia Christmas market, during the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, December 17, 2020. REUTERS/ Albert Gea

Clay "caganers" figures representing Spiderman, Superman and Batman, which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, are displayed in a stall at the Santa Llucia Christmas market, during the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, December 17, 2020. REUTERS/ Albert Gea

Clay "caganers" figures, which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, are displayed in a stall at the Santa Llucia Christmas market, during the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, December 17, 2020. REUTERS/ Albert Gea

A woman takes a clay "caganer" figure wearing a mask, which symbolises defecation and fertilisation of the earth, and is believed to bring prosperity and luck for the coming year, from a stall at the Santa Llucia Christmas market in central Barcelona, during the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, December 17, 2020. REUTERS/ Albert Gea

A woman holds a clay "caganer" figure wearing a mask, which symbolises defecation and fertilisation of the earth, and is believed to bring prosperity and luck for the coming year, at the Santa Llucia Christmas market in central Barcelona, during the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, December 17, 2020. REUTERS/Albert Gea

A woman takes a clay "caganer" figure, which symbolises defecation and fertilisation of the earth, and is believed to bring prosperity and luck for the coming year, at the Santa Llucia Christmas market in central Barcelona, during the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, December 17, 2020. REUTERS/Albert Gea

Clay "caganers" figures wearing masks, which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, are displayed at the Santa Llucia Christmas market in central Barcelona, during the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, December 17, 2020. REUTERS/Albert Gea

A woman looks at clay "caganers" figures, which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in a stall at the Santa Llucia Christmas market in central Barcelona, during the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, December 17, 2020. REUTERS/Albert Gea

Clay "caganers", figures wearing masks, which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, are displayed at the Santa Llucia Christmas market in central Barcelona, during the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, December 17, 2020. REUTERS/Albert Gea

A container where the authorities found decomposed bodies inside a fertiliser shipment that left Serbia three months ago is pictured in Asuncion, Paraguay, October 23, 2020. REUTERS/Jorge Adorno

A container where the authorities found decomposed bodies inside a fertiliser shipment that left Serbia three months ago is pictured in Asuncion, Paraguay, October 23, 2020. REUTERS/Jorge Adorno

A container where the authorities found decomposed bodies inside a fertiliser shipment that left Serbia three months ago is pictured in Asuncion, Paraguay, October 23, 2020. REUTERS/Jorge Adorno

A police vehicle is seen near a container where the authorities found decomposed bodies inside a fertiliser shipment that left Serbia three months ago, in Asuncion, Paraguay, October 23, 2020. REUTERS/Jorge Adorno

A police vehicle is seen near a container where the authorities found decomposed bodies inside a fertiliser shipment that left Serbia three months ago, in Asuncion, Paraguay, October 23, 2020. REUTERS/Jorge Adorno

A farmer sprinkles fertiliser onto crops at a field on Tuti Island, Khartoum, Sudan, February 12, 2020. REUTERS/Zohra Bensemra SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Bags filled with bat guano are seen outside of a bat cave at Wat Khao Chong Phran in Ratchaburi, Thailand March 14, 2020. Picture taken March 14, 2020. REUTERS/Juarawee Kittisilpa

A man dispenses fertiliser in a rice field, near Zanzibar City, on the island of Zanzibar, Tanzania, October 31, 2019. Picture taken October 31, 2019. REUTERS/Baz Ratner

Farmer Muhammad Rasman, 51, collects ashes from peatland and trees burned next to his farmland for fertiliser at Sebangau district in Palangka Raya, Central Kalimantan province, Indonesia, September 19, 2019. REUTERS/Willy Kurniawan SEARCH "KURNIAWAN RAYA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Farmer Muhammad Rasman, 51, collects the ashes from peatland and trees burned next to his farmland for fertiliser at Sebangau district in Palangka Raya, Central Kalimantan province, Indonesia, September 19, 2019. REUTERS/Willy Kurniawan SEARCH "KURNIAWAN RAYA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A detailed view of camel feces at the animal waste transfer station in Adhen Village, Ras al Khaimah, United Arab Emirates July 16, 2019. Picture taken July 16, 2019. REUTERS/Christopher Pike

Austrian plastics and fertiliser maker Borealis Chief Executive Alfred Stern gestures during an interview with Reuters in Vienna, Austria May 13, 2019. REUTERS/Leonhard Foeger

Austrian plastics and fertiliser maker Borealis Chief Executive Alfred Stern gestures during an interview with Reuters in Vienna, Austria May 13, 2019. REUTERS/Leonhard Foeger

Austrian plastics and fertiliser maker Borealis Chief Executive Alfred Stern looks on during an interview with Reuters in Vienna, Austria May 13, 2019. REUTERS/Leonhard Foeger

Austrian plastics and fertiliser maker Borealis Chief Executive Alfred Stern gestures during an interview with Reuters in Vienna, Austria May 13, 2019. REUTERS/Leonhard Foeger

Austrian plastics and fertiliser maker Borealis Chief Executive Alfred Stern gestures during an interview with Reuters in Vienna, Austria May 13, 2019. REUTERS/Leonhard Foeger

Austrian plastics and fertiliser maker Borealis Chief Executive Alfred Stern gestures during an interview with Reuters in Vienna, Austria May 13, 2019. REUTERS/Leonhard Foeger

Austrian plastics and fertiliser maker Borealis Chief Executive Alfred Stern gestures during an interview with Reuters in Vienna, Austria May 13, 2019. REUTERS/Leonhard Foeger

Austrian plastics and fertiliser maker Borealis Chief Executive Alfred Stern looks on during an interview with Reuters in Vienna, Austria May 13, 2019. REUTERS/Leonhard Foeger

Dmitry Mazepin, majority owner of Russia's fertiliser group Uralchem, and tycoon Andrei Melnichenko attend a session during the Week of Russian Business, organised by the Russian Union of Industrialists and Entrepreneurs (RSPP), in Moscow, Russia March 14, 2019. REUTERS/Maxim Shemetov

Dmitry Mazepin, majority owner of Russia's fertiliser group Uralchem, attends a session during the Week of Russian Business, organised by the Russian Union of Industrialists and Entrepreneurs (RSPP) in Moscow, Russia March 14, 2019. REUTERS/Maxim Shemetov

Heads turn when An Hui and Ye Jianbin walk down a street in the Chinese city of Shenzhen with their triplets, who were conceived with help from a human egg donor and a surrogate mother. People are mostly curious about their unconventional family, said An, adding that it was not always the case in China where gay couples have long battled conservative Confucian values. The two men wanted a family and began exploring the option of in vitro fertilisation (IVF), with help from a human egg donor and a surrogate mother. In 2014, a Thai woman gave birth in Hong Kong to three boys Ð An Zhizhong, An Zhiya and An Zhifei - who were conceived using human eggs provided by a German fashion model, according to An. REUTERS/Jason Lee SEARCH "LGBT TRIPLETS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. Matching text: CHINA-LGBT/CHILDREN

A man makes a "caganer", or defecator, depicting former Catalan president Carles Puigdemont with a mould in a pottery in Torroella de Montgri, near Girona, Spain, December 14, 2018. Catalans hide "caganers", which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. Picture taken December 14, 2018. REUTERS/Albert Gea

People look at clay "caganers" figures at the Santa Llucia Christmas market in central Barcelona, Spain, December 14, 2018. Catalans hide "caganers", which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. Picture taken December 14, 2018. REUTERS/Albert Gea

Clay "caganers" figures representing a yellow ribbon (the symbol used to demand the release of jailed Catalonian politicians) is sold at the Santa Llucia Christmas market in central Barcelona, Spain, December 14, 2018. Catalans hide "caganers", which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. Picture taken December 14, 2018. REUTERS/Albert Gea

Clay "caganers" figures representing U.S. President Donald Trump, Russian President Vladimir Putin, North Korean leader Kim Jong Un, British Prime Minister Theresa May, Chinese President Xi Jinping, German Chancellor Angela Merkel, Queen Elizabeth II, French President Emmanuel Macron, and Spanish Prime Minister Pedro Sanchez are displayed at the Santa Llucia Christmas market in central Barcelona, Spain, December 14, 2018. Catalans hide "caganers", which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. Picture taken December 14, 2018. REUTERS/Albert Gea

Clay "caganers" figures representing Catalan, Spanish and international politicians are displayed at the Santa Llucia Christmas market in central Barcelona, Spain, December 14, 2018. Catalans hide "caganers", which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. Picture taken December 14, 2018. REUTERS/Albert Gea

A boy points at clay "caganers" figures at the Santa Llucia Christmas market in central Barcelona, Spain, December 14, 2018. Catalans hide "caganers", which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. Picture taken December 14, 2018. REUTERS/Albert Gea

Clay "caganers" figures representing French President Emmanuel Macron, German Chancellor Angela Merkel, British Prime Minister Theresa May and Russian President Vladimir Putin are displayed at the Santa Llucia Christmas market in central Barcelona, Spain, December 14, 2018. Catalans hide "caganers", which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. Picture taken December 14, 2018. REUTERS/Albert Gea

Clay "caganers" figures are displayed at the Santa Llucia Christmas market in central Barcelona, Spain, December 14, 2018. Catalans hide "caganers", which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. Picture taken December 14, 2018. REUTERS/Albert Gea

Clay "caganers" figures representing FC Barcelona's players Lionel Messi, Sergi Roberto and Luis Suarez are displayed at the Santa Llucia Christmas market in central Barcelona, Spain, December 14, 2018. Catalans hide "caganers", which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. Picture taken December 14, 2018. REUTERS/Albert Gea

Clay "caganers" figures representing Catalan and Spanish politicians and Spanish Royal family are displayed at the Santa Llucia Christmas market in central Barcelona, Spain, December 14, 2018. Catalans hide "caganers", which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. Picture taken December 14, 2018. REUTERS/Albert Gea

Clay "caganers" figures representing international politicians and soccer players are sold at the Santa Llucia Christmas market in central Barcelona, Spain, December 14, 2018. Catalans hide "caganers", which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. Picture taken December 14, 2018. REUTERS/Albert Gea

A man makes a "caganer", or defecator, depicting former Catalan president Carles Puigdemont with a mould, in a pottery in Torroella de Montgri, near Girona, Spain, December 14, 2018. Catalans hide "caganers", which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. Picture taken December 14, 2018. REUTERS/Albert Gea

A man paints a "caganer", or defecator, depicting British Prime Minister Theresa May in a pottery in Torroella de Montgri, near Girona, Spain, December 14, 2018. Catalans hide "caganers", which symbolise defecation and fertilisation of the earth, and are believed to bring prosperity and luck for the coming year, in Christmas Nativity scenes to let friends hunt for them during Christmas celebrations. Picture taken December 14, 2018. REUTERS/Albert Gea

Dr Dyllon Randall holds a bio-brick made from urine at the University of Cape Town, in Cape Town, South Africa November 2, 2018. The odourless, grey prototype brick was grown in a mould in the lab over eight days and is the final product in a process that also produces fertilisers. REUTERS/Mike Hutchings

Researchers Dr Dyllon Randall, Suzanne Lambert and Vukheta Mukhari stand with a bio-brick made from urine at the University of Cape Town, in Cape Town, South Africa November 2, 2018. The odourless, grey prototype brick was grown in a mould in the lab over eight days and is the final product in a process that also produces fertilisers. REUTERS/Mike Hutchings

Amandine Giraud and her wife Laurene Corral pose with their children Makenzy and Leandre conceived with fertility assistance during an interview with Reuters in Paris, France, September 25, 2018. France's highest bioethics body announced that Lesbian couples and single women who want to bear children should have access to medically assisted reproduction treatments such as in-vitro fertilisation. REUTERS/Christian Hartmann

Amandine Giraud and her wife Laurene Corral pose with their children Makenzy and Leandre conceived with fertility assistance during an interview with Reuters in Paris, France, September 25, 2018. France's highest bioethics body announced that Lesbian couples and single women who want to bear children should have access to medically assisted reproduction treatments such as in-vitro fertilisation. REUTERS/Christian Hartmann

Amandine Giraud and her wife Laurene Corral pose with their children Makenzy and Leandre conceived with fertility assistance during an interview with Reuters in Paris, France, September 25, 2018. France's highest bioethics body announced that Lesbian couples and single women who want to bear children should have access to medically assisted reproduction treatments such as in-vitro fertilisation. REUTERS/Christian Hartmann

The logo of fertiliser maker Notore Chemical Industries Plc is pictured in Abuja, Nigeria August 2, 2018. REUTERS/Afolabi Sotunde