Dang Van Chou demolishes his floating house on the Tonle Sap river after they were ordered to leave within one week of being notified by local authorities in Prek Pnov district, Phnom Penh, Cambodia, June 12, 2021. REUTERS/Cindy Liu

Residents demolish their floating houses on the Tonle Sap river after they were ordered to leave within one week of being notified by local authorities in Prek Pnov district, Phnom Penh, Cambodia, June 12, 2021. REUTERS/Cindy Liu

Residents demolish their floating houses on the Tonle Sap river after they were ordered to leave within one week of being notified by local authorities in Prek Pnov district, Phnom Penh, Cambodia, June 12, 2021. REUTERS/Cindy Liu

Residents demolish their floating houses on the Tonle Sap river after they were ordered to leave within one week of being notified by local authorities in Prek Pnov district, Phnom Penh, Cambodia, June 12, 2021. REUTERS/Cindy Liu TPX IMAGES OF THE DAY

Residents demolish their floating houses on the Tonle Sap river after they were ordered to leave within one week of being notified by local authorities in Prek Pnov district, Phnom Penh, Cambodia, June 12, 2021. REUTERS/Cindy Liu

Residents demolish their floating houses on the Tonle Sap river after they were ordered to leave within one week of being notified by local authorities in Prek Pnov district, Phnom Penh, Cambodia, June 12, 2021. REUTERS/Cindy Liu

Floating houses are seen on the Tonle Sap River in Prek Pnov district, Phnom Penh, Cambodia, June 12, 2021. REUTERS/Cindy Liu

Floating houses are seen on the Tonle Sap River in Prek Pnov district, Phnom Penh, Cambodia, June 12, 2021. REUTERS/Cindy Liu

The logo of SAP is seen on their offices in Reston, Virginia, U.S., May 12, 2021. Picture taken May 12, 2021. REUTERS/Andrew Kelly

The logo of SAP is seen on their offices in Reston, Virginia, U.S., May 12, 2021. Picture taken May 12, 2021. REUTERS/Andrew Kelly

The logo of SAP is seen on their offices in Reston, Virginia, U.S., May 12, 2021. Picture taken May 12, 2021. REUTERS/Andrew Kelly

CEO of the company 1NCE, Jans Jelinskis, shows the E-birch phone app that sends the user a text message when a birch sap container is full, in Riga, Latvia, May 7, 2021. REUTERS/Janis Laizans

A phone with the E-birch app, which sends the user a text message when a birch sap container is full, is pictured in Riga, Latvia, May 7, 2021. REUTERS/Janis Laizans

CEO of the company 1NCE, Jans Jelinskis, works in a lab on the E-birch app that sends the user a text message when a birch sap container is full, in Riga, Latvia, May 7, 2021. REUTERS/Janis Laizans

Birch trees are pictured in Liepupe, Latvia May 1, 2021. Picture taken May 1, 2021. REUTERS/Ints Kalnins

Birch trees are pictured in Liepupe, Latvia May 1, 2021. Picture taken May 1, 2021. REUTERS/Ints Kalnins

Visitors watch as sap from maple trees is boiled down into maple syrup in the evaporator in the sugar house at Hollis Hills Farm in Fitchburg, Massachusetts, U.S., March 13, 2021. REUTERS/Brian Snyder

Sap from a maple tree drips into a bucket to be boiled down into maple syrup at Hollis Hills Farm in Fitchburg, Massachusetts, U.S., March 13, 2021. REUTERS/Brian Snyder

Visitors watch as sap from maple trees is boiled down into maple syrup in the evaporator in the sugar house at Hollis Hills Farm in Fitchburg, Massachusetts, U.S., March 13, 2021. REUTERS/Brian Snyder

Floating houses sit on the Tonle Sap River near Phnom Penh, Cambodia, February 20, 2021. Picture taken February 20, 2021. REUTERS/Cindy Liu

Fishermen dock their boats on a river branching off Bassac River, a distributary of the Tonle Sap and Mekong River, during low water levels near Phnom Penh, Cambodia, February 22, 2021. Picture taken February 22, 2021. REUTERS/Cindy Liu

Floating houses sit on the Tonle Sap River near Phnom Penh, Cambodia, February 20, 2021. Picture taken February 20, 2021. REUTERS/Cindy Liu

A man uses his mobile phone on the Tonle Sap riverside amid the coronavirus pandemic in Phnom Penh, Cambodia, February 18, 2021. REUTERS/Cindy Liu

People uses their mobile phones on the Tonle Sap riverside in Phnom Penh, Cambodia, February 18, 2021. REUTERS/Cindy Liu

SAP SE CEO Christian Klein attends the company's annual results press conference in Walldorf, Germany, January 29, 2021. Uwe Anspach/Pool via REUTERS

SAP SE CEO Christian Klein has makeup applied before the company's annual results press conference in Walldorf, Germany, January 29, 2021. Uwe Anspach/Pool via REUTERS

SAP SE CEO Christian Klein attends the company's annual results press conference in Walldorf, Germany, January 29, 2021. Uwe Anspach/Pool via REUTERS

SAP SE CEO Christian Klein attends the company's annual results press conference in Walldorf, Germany, January 29, 2021. Uwe Anspach/Pool via REUTERS

SAP SE CEO Christian Klein has makeup applied before the company's annual results press conference in Walldorf, Germany, January 29, 2021. Uwe Anspach/Pool via REUTERS

SAP SE CEO Christian Klein attends the company's annual results press conference in Walldorf, Germany, January 29, 2021. Uwe Anspach/Pool via REUTERS

The logo of German software group SAP is pictured at the headquarters of SAP (Schweiz) AG in Regensdorf, Switzerland January 22, 2021. Picture taken January 22, 2021. REUTERS/Arnd Wiegmann

The logo of German software group SAP's Swiss division SAP (Schweiz) AG is pictured in Regensdorf, Switzerland January 22, 2021. Picture taken January 22, 2021. REUTERS/Arnd Wiegmann

The logo of German software group SAP is pictured at the headquarters of SAP (Schweiz) AG in Regensdorf, Switzerland January 22, 2021. Picture taken January 22, 2021. REUTERS/Arnd Wiegmann

Since mid-September, China has been sending war planes into Taiwan’s Air Defense Identification Zone. The move is sapping the Taiwanese military, which has responded by scrambling its aircraft to confront the Chinese planes.

Chief Technology Officer (CTO) of SAP Juergen Mueller attends a news conference to give an update on a smartphone app that allows users to evaluate their risk of being exposed to the coronavirus in Berlin, Germany, September 23, 2020. Bernd von Jutrczenka/Pool via REUTERS

Chief Technology Officer (CTO) of SAP Juergen Mueller attends a news conference to give an update on a smartphone app that allows users to evaluate their risk of being exposed to the coronavirus in Berlin, Germany, September 23, 2020. Bernd von Jutrczenka/Pool via REUTERS

Chief Technology Officer (CTO) of SAP Juergen Mueller, Minister of State at the Chancellery for Digitalization Dorothee Baer, German Chief of Staff Helge Braun, German Health Minister Jens Spahn and CEO of Deutsche Telekom Timotheus Hoettges arrive for a news conference to give an update on a smartphone app that allows users to evaluate their risk of being exposed to the coronavirus in Berlin, Germany, September 23, 2020. Bernd von Jutrczenka/Pool via REUTERS

Chief Technology Officer (CTO) of SAP Juergen Mueller, Minister of State at the Chancellery for Digitalization Dorothee Baer, German Chief of Staff Helge Braun, German Health Minister Jens Spahn and CEO of Deutsche Telekom Timotheus Hoettges arrive for a news conference to give an update on a smartphone app that allows users to evaluate their risk of being exposed to the coronavirus in Berlin, Germany, September 23, 2020. Bernd von Jutrczenka/Pool via REUTERS

A fisherman is seen next to docked scattered boats on a dried up tributary that connects to the Tonle Sap lake in Kampong Khleang, Cambodia July 6, 2020. Picture taken July 6, 2020. REUTERS/Prak Chan Thul

Scattered boats are seen in the dried up tributary that connects to the Tonle Sap lake in Kampong Khleang, Cambodia July 6, 2020. Picture taken July 6, 2020. REUTERS/Prak Chan Thul

A Buddha statue overlooks docked scattered boats on a dried up tributary that connects to the Tonle Sap lake in Kampong Khleang, Cambodia July 6, 2020. Picture taken July 6, 2020. REUTERS/Prak Chan Thul TPX IMAGES OF THE DAY

Scattered boats are seen in the dried up tributary that connects to the Tonle Sap lake in Kampong Khleang, Cambodia July 6, 2020. Picture taken July 6, 2020. REUTERS/Prak Chan Thul

Scattered boats are seen in the dried up tributary that connects to the Tonle Sap lake in Kampong Khleang, Cambodia July 6, 2020. Picture taken July 6, 2020. REUTERS/Prak Chan Thul

A group of people sail across the Nile river as they travel from Omdurman to Tuti Island on a taxi boat in Khartoum, Sudan, February 17, 2020. REUTERS/Zohra Bensemra SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A bird flies over the convergence between the White Nile river and Blue Nile river in Khartoum, Sudan, February 17, 2020. REUTERS/Zohra Bensemra SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Chairs are left facing the banks of the Blue Nile river in Khartoum, Sudan, February 15, 2020. REUTERS/Mohamed Nureldin Abdallah SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A high school student reads his lesson notes as he sits by a bank on the Nile river in Alqamayir, Omdurman, Sudan, February 15, 2020. REUTERS/Zohra Bensemra SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

At an open-air, riverbank factory where the Blue Nile and White Nile meet in Sudan, Mohamed Ahmed al Ameen and his colleagues mould thousands of bricks every day from mud deposited by summer floods. "I consider the Nile something I have not parted with since I was born," Ameen said, as workers around him shaped bricks with blistered hands and laid them out to dry in the sun. "I eat from it, I farm with it. And I extract these bricks from it." But the labourers on Tuti Island in Sudan's capital Khartoum fear a giant dam Ethiopia is building close to the border between the two countries could endanger their livelihood. They worry the Grand Ethiopian Renaissance Dam upstream could weaken the Blue Nile's force, putting at risk an industry that locals say provided bricks for some of Khartoum's first modern public buildings around a century ago. Pottery makers, farmers and fishermen around the Nile's convergence share similar concerns, though other residents displaced by flooding last summer see benefit in a dam that will regulate the powerful river's waters. REUTERS/Zohra Bensemra. SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. Matching text: NILE-CONVERGENCE/ TEMPLATE OUT

Fishermen wash their catch in the waters of the Nile river in Omdurman, Sudan, February 21, 2020. REUTERS/Zohra Bensemra SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A woman sits on a taxi boat as she travels across the convergence between the Blue Nile river and the White Nile river in Khartoum, Sudan, February 15, 2020. REUTERS/Mohamed Nureldin Abdallah SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Tourists sail across the convergence between the White Nile river and Blue Nile river in Khartoum, Sudan, February 15, 2020. REUTERS/Zohra Bensemra SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Tents that belong to people who were displaced from their homes when the Nile river overflowed in September 2019, stand together in Wad Ramli, Sudan, February 19, 2020. REUTERS/Zohra Bensemra SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

David Plantino, 35, a pottery maker from South Sudan, puts on shoes at his shelter where he sleeps during the week, as he gets ready to go to work in Omdurman, Sudan, February 18, 2020. REUTERS/Zohra Bensemra SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Peter Majak, a pottery maker from South Sudan, rests under a mosquito net inside a traditional pottery factory close to the banks of the Nile river, in Alqamayir, Omdurman, Sudan, February 17, 2020. REUTERS/Mohamed Nureldin Abdallah SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Ibtissam, 46, whose husband Mutasim al-Jeiry is a pottery maker, carries a tray out of the kitchen at their home in an area known as the 'Potters Village' in Alqamayir, Omdurman, Sudan, February 18, 2020. "Our life depends on the mud of the Nile, without it we will not eat", said Ibtissam. REUTERS/Zohra Bensemra SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Mutasim al-Jeiry, 50, a pottery maker, checks his mobile phone as he sits inside his workshop in an area known as the "Potters Village" in Alqamayir, Omdurman, Sudan, February 17, 2020. The dam "will stabilise the Nile and we will get less flooding", said al-Jeiry. "But on the other hand we will get less clay and less water. Farmers, brick and pottery makers will be seriously affected", he predicts. REUTERS/Zohra Bensemra SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

The wall of a house that was damaged when the Nile river overflowed in September 2019, stands in Wad Ramli, Sudan, February 19, 2020. REUTERS/Zohra Bensemra SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Mazeen, (R), 12, collects clay in an area known as the 'Potters Village' in Alqamayir, Omdurman, Sudan, February 16, 2020. REUTERS/Zohra Bensemra SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Manal, who was displaced from her home when the Nile river overflowed in September 2019, sits inside her tent in Wad Ramli, Sudan, February 19, 2020. "With the damn that Ethiopia is building we may be less affected by the floods, which is good but we will also face a lack of water to irrigate our land," said Manal. REUTERS/Zohra Bensemra SEARCH "BENSEMRA NILE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.