EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. FILE PHOTO: A woman from an African Islamic country (in white) stands among Iranian women during the national anthem of Iran at the opening session of the 8th Islamic Conference Summit in Tehran's new conference building on December 9, 1997. REUTERS/Yannis Behrakis/File photo SEARCH "YANNIS BEHRAKIS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

An old woman walks in Cairo, Egypt, November 25, 2018. REUTERS/Amr Abdallah Dalsh 

An old woman walks near a boy after a school day in Cairo, Egypt, November 25, 2018. REUTERS/Amr Abdallah Dalsh 

A naked man covered in mud lies on a beach, nearby a dreadlocked recluse reads from the Book of Exodus and a woman strikes a low soothing note from a Tibetan singing bowl. It's sunset at the Dead Sea, where the New Age melds with a biblical vista in danger of becoming a paradise lost. The Dead Sea's salt-rich waters are vanishing and its shores are being devoured by sinkholes, making Metzoke Dragot beach one of the last unspoiled spots at the lowest point on the planet. Over centuries the ancient lake has drawn monks, hermits, small Jewish sects and early Christians, travellers seeking spiritual elation and tourists who enjoy floating in the highly-buoyant water and covering themselves with its mineral-rich mud. But in the past few decades, ecological damage has been devastating. REUTERS/Ronen Zvulun SEARCH "ZVULUN DEADSEA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. Matching text: ISRAEL-PALESTINIANS/DEADSEA 

Rosa Mosquera, 58, mother of Santi Diaz Mosquera, 41, a 'percebeiro' (barnacle fisherman), stands at the entrance of their house on the coast of Ferrol, in the northwestern Spanish region of Galicia, December 14, 2016. REUTERS/Nacho Doce SEARCH "BARNACLES" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Rosa Mosquera, 58, mother of Santi Diaz Mosquera, 41, a 'percebeiro' (barnacle fisherman), stands at the entrance of their house on the coast of Ferrol, in the northwestern Spanish region of Galicia, December 14, 2016. REUTERS/Nacho Doce SEARCH "BARNACLES" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A woman casts her vote at a polling station during a re-run of the December 11 election in Tearce village, Macedonia, December 25, 2016.REUTERS/Ognen Teofilovski 

A woman enters a polling station to cast her vote during a re-run of the December 11 election in Tearce village, Macedonia December 25, 2016.REUTERS/Ognen Teofilovski 

Christian tourists stand on a dock before boarding a boat as they tour the Sea of Galilee near Tiberias, Israel November 30, 2016. REUTERS/Ronen Zvulun SEARCH "GALILEE" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Pennsylvania elector Carolyn Bunny Welsh smiles as she returns to her seat after casting her ballot for U.S. President-elect Donald Trump at the Pennsylvania State Capitol in Harrisburg, Pennsylvania, U.S. December 19, 2016. REUTERS/Jonathan Ernst 

Ukraine's First Vice Prime Minister and Economy Minister Stepan Kubiv and European Union foreign policy chief Federica Mogherini address a joint news conference during a EU-Ukraine Association Council in Brussels, Belgium December 19, 2016. REUTERS/Francois Lenoir 

Ukraine's First Vice Prime Minister and Economy Minister Stepan Kubiv and European Union foreign policy chief Federica Mogherini attend a EU-Ukraine Association Council in Brussels, December 19, 2016. REUTERS/Francois Lenoir 

European Union foreign policy chief Federica Mogherini poses with Ukraine's First Vice Prime Minister Stepan Kubiv and Vice Prime Minister Ivanna Klympush-Tsintsadze (L) during a EU-Ukraine Association Council in Brussels, December 19, 2016. REUTERS/Francois Lenoir 

Indonesia Foreign Minister Retno Marsudi arrives to attend ASEAN Foreign Minister Meeting for Rohingya issue in Sedona hotel at Yangon, Myanmar December 19, 2016. REUTERS/Soe Zeya Tun 

U.S. President-elect Donald Trump greets campaign manager and senior advisor, Kellyanne Conway (C), and Campaign Communications Director Hope Hicks (L) during a USA Thank You Tour event in Mobile, Alabama, U.S., December 17, 2016. REUTERS/Lucas Jackson 

U.S. President-elect Donald Trump greets Kellyanne Conway, his campaign manager and senior advisor, during a USA Thank You Tour event in Mobile, Alabama, U.S., December 17, 2016. REUTERS/Lucas Jackson 

Chile's President Michelle Bachelet speaks to Argentine President Mauricio Macri during a news conference at the Olivos presidential residence in Buenos Aires, Argentina, December 16, 2016. REUTERS/Marcos Brindicci 

Argentina's President Mauricio Macri and his Chilean counterpart Michelle Bachelet gesture during a news conference at the Olivos presidential residence in Buenos Aires, Argentina, December 16, 2016. REUTERS/Marcos Brindicci 

Argentina's President Mauricio Macri and his Chilean counterpart Michelle Bachelet speak during a news conference at the Olivos presidential residence in Buenos Aires, Argentina, December 16, 2016. REUTERS/Marcos Brindicci 

Argentina's President Mauricio Macri kisses his Chilean counterpart Michelle Bachelet during a news conference at the Olivos presidential residence in Buenos Aires, Argentina, December 16, 2016. REUTERS/Marcos Brindicci 

Argentina's President Mauricio Macri greets his Chilean counterpart Michelle Bachelet during a news conference at the Olivos presidential residence in Buenos Aires, Argentina, December 16, 2016. REUTERS/Marcos Brindicci 

Argentina's President Mauricio Macri speaks next to his Chilean counterpart Michelle Bachelet during a news conference at the Olivos presidential residence in Buenos Aires, Argentina, December 16, 2016. REUTERS/Marcos Brindicci 

Argentina's President Mauricio Macri meets his Chilean counterpart Michelle Bachelet at the Olivos presidential residence in Buenos Aires, Argentina, December 16, 2016. REUTERS/Marcos Brindicci 

Argentina's President Mauricio Macri meets his Chilean counterpart Michelle Bachelet alongside Ministers of Foreign Affairs Heraldo Munoz (L) of Chile and Susana Malcorra of Argentina at the Olivos presidential residence in Buenos Aires, Argentina, December 16, 2016. REUTERS/Marcos Brindicci 

Argentina's President Mauricio Macri meets his Chilean counterpart Michelle Bachelet at the Olivos presidencial residence in Buenos Aires, Argentina, December 16, 2016. REUTERS/Marcos Brindicci 

French Education Minister Najat Vallaud-Belkacem applauds during a meeting about digital education at the Elysee Palace in Paris, France, December 16, 2016. REUTERS/Benoit Tessier 

French Education Minister Najat Vallaud-Belkacem speaks about digital education at the Elysee Palace in Paris, France in Paris, France, December 16, 2016. REUTERS/Benoit Tessier 

Russian central bank governor Elvira Nabiullina reacts during a news conference in Moscow, Russia, December 16, 2016. REUTERS/Maxim Shemetov 

Russian central bank governor Elvira Nabiullina gestures during a news conference in Moscow, Russia, December 16, 2016. REUTERS/Maxim Shemetov 

Russian central bank governor Elvira Nabiullina gestures during a news conference in Moscow, Russia, December 16, 2016. REUTERS/Maxim Shemetov 

Russian central bank governor Elvira Nabiullina reacts during a news conference in Moscow, Russia, December 16, 2016. REUTERS/Maxim Shemetov 

Russian central bank governor Elvira Nabiullina attends a news conference in Moscow, Russia, December 16, 2016. REUTERS/Maxim Shemetov 

Russian central bank governor Elvira Nabiullina attends a news conference in Moscow, Russia, December 16, 2016. REUTERS/Maxim Shemetov 

Russian central bank governor Elvira Nabiullina attends a news conference in Moscow, Russia, December 16, 2016. REUTERS/Maxim Shemetov 

Poland's Prime Minister Beata Szydlo waves as she arrives at a European Union leaders summit in Brussels, Belgium December 15, 2016. REUTERS/Francois Lenoir 

Britain's Defence Secretary Michael Fallon (L) greets Italian Minister of Defence Roberta Pinotti at the Foreign Office in London, Britain December 15, 2016. REUTERS/Stefan Rousseau/Pool 

Poland's Prime Minister Beata Szydlo arrives at a European Union leaders summit in Brussels, Belgium December 15, 2016. REUTERS/Francois Lenoir 

Britain's Defence Secretary Michael Fallon (L) greets Spanish Minister of Defence Maria Dolores de Cospedal Garcia at the Foreign Office in London, Britain December 15, 2016. REUTERS/Stefan Rousseau/Pool 

Britain's Defence Secretary Michael Fallon (L) greets Germany's Minister of Defence Ursula von der Leyen at the Foreign Office in London, Britain December 15, 2016. REUTERS/Stefan Rousseau/Pool 

Oracle co-CEO Safra Catz enters Trump Tower ahead of a meeting of technology leaders with President-elect Donald Trump in Manhattan, New York City, U.S., December 14, 2016. REUTERS/Andrew Kelly 

Oracle co-CEO Safra Catz enters Trump Tower ahead of a meeting of technology leaders with President-elect Donald Trump in Manhattan, New York City, U.S., December 14, 2016. REUTERS/Andrew Kelly 

Oracle co-CEO Safra Catz enters Trump Tower ahead of a meeting of technology leaders with President-elect Donald Trump in Manhattan, New York City, U.S., December 14, 2016. REUTERS/Andrew Kelly 

Ginni Rometty, Chairwoman, President and CEO of IBM, enters Trump Tower ahead of a meeting of technology leaders with President-elect Donald Trump in Manhattan, New York City, U.S., December 14, 2016. REUTERS/Andrew Kelly 

Ginni Rometty, Chairwoman, President and CEO of IBM, enters Trump Tower ahead of a meeting of technology leaders with President-elect Donald Trump in Manhattan, New York City, U.S., December 14, 2016. REUTERS/Andrew Kelly 

French Minister of the Civil Service Annick Girardin (L), French Overseas Minister Ericka Bareigts (C) and Interior Minister Bruno Le Roux (R) leave at the end of the weekly cabinet meeting at the Elysee Palace in Paris, France, December 14, 2016. REUTERS/Charles Platiau 

Newly appointed Italian Prime Minister Paolo Gentiloni (L) speaks with Finance Minister Pier Carlo Padoan as Defence Minister Roberta Pinotti looks on before a confidence vote at the Senate in Rome, Italy December 14, 2016. REUTERS/Alessandro Bianchi 

Italian Defence Minister Roberta Pinotti talks with Finance Minister Pier Carlo Padoan before a confidence vote at the Senate in Rome, Italy December 14, 2016. REUTERS/Alessandro Bianchi 

Newly appointed Italian Prime Minister Paolo Gentiloni and Defence Minister Roberta Pinotti look on before a confidence vote at the Senate in Rome, Italy December 14, 2016. REUTERS/Alessandro Bianchi 

French politician Arnaud Montebourg, candidate for January's Socialist presidential primary, visits a camp for migrants in Grande Synthe, France December 14, 2016. REUTERS/Pascal Rossignol 

French politician Arnaud Montebourg, candidate for January's Socialist presidential primary, visits a camp for migrants in Grande Synthe, France December 14, 2016. REUTERS/Pascal Rossignol 

French politician Arnaud Montebourg, candidate for January's Socialist presidential primary, visits a camp for migrants in Grande Synthe, France December 14, 2016. REUTERS/Pascal Rossignol 

French Prime Minister Bernard Cazeneuve (R) speaks with housing minister Emmanuelle Cosse (C) next to Minister for Ecology, Sustainable Development and Energy Segolene Royal (L) before a speech outlining his new government program at the National Assembly in Paris, France, December 13, 2016. REUTERS/Philippe Wojazer

Newly appointed Italian Prime Minister Paolo Gentiloni (L) talks with Defence Minister Roberta Pinotti before a confidence vote at the parliament in Rome, Italy, December 13, 2016. REUTERS/Alessandro Bianchi 

Philippines' Vice President Leni Robredo speaks during a Reuters interview, at the Quezon City Reception House, Metro Manila, Philippines December 12, 2016. To match Interview PHILIPPINES-POLITICS/ROBREDO REUTERS/Ezra Acayan 

Philippines' Vice President Leni Robredo speaks during a Reuters interview, at the Quezon City Reception House, Metro Manila, Philippines December 12, 2016. To match Interview PHILIPPINES-POLITICS/ROBREDO REUTERS/Ezra Acayan 

Philippines' Vice President Leni Robredo gestures while speaking during a Reuters interview, at the Quezon City Reception House, Metro Manila, Philippines December 12, 2016. To match Interview PHILIPPINES-POLITICS/ROBREDO REUTERS/Ezra Acayan 

Philippines' Vice President Leni Robredo gestures while speaking during a Reuters interview, at the Quezon City Reception House, Metro Manila, Philippines December 12, 2016. To match Interview PHILIPPINES-POLITICS/ROBREDO REUTERS/Ezra Acayan 

Cuba's Foreign Minister Bruno Rodriguez and European Union foreign policy chief Federica Mogherini attend a signing ceremony of a EU-Cuba Political Dialogue and Cooperation Agreement in Brussels, Belgium December 12, 2016. REUTERS/Francois Lenoir 

Cuba's Foreign Minister Bruno Rodriguez and European Union foreign policy chief Federica Mogherini attend a signing ceremony of a EU-Cuba Political Dialogue and Cooperation Agreement in Brussels, Belgium December 12, 2016. REUTERS/Francois Lenoir 

Cuba's Foreign Minister Bruno Rodriguez shakes hands with European Union foreign policy chief Federica Mogherini after signing a EU-Cuba Political Dialogue and Cooperation Agreement in Brussels, Belgium December 12, 2016. REUTERS/Francois Lenoir