In this Saturday, March 21, 2015 photo, a porter rests carrying supplies for the upcoming climbing season, near the Everest Base camp, Nepal. Nepal has cleared more than 300 mountaineers to climb Mount Everest after they had to abandon last year's efforts when an ice avalanche killed 16 guides in the mountain's deadliest disaster, an official said on March 20. The three-month climbing season for Everest, the world's tallest mountain, begins in March. (Photo by Tashi Sherpa/AP Photo)

In this December 29, 2004 file photo, Kusol Wetchakul offers prayers for the soul of his sister, at dawn along the beach near Khao Lak, Thailand. Wetchakul's sister was swept out to sea and believed drowned as she sold goods to tourists on the popular tourist beach just north of Phuket. Friday marks the 10th anniversary of one of the deadliest natural disasters in world history: a tsunami, triggered by a massive earthquake off the Indonesian coast, leaving more than 230,000 people dead in 14 countries and causing about $10 billion in damage. (Photo by David Longstreath/AP Photo)

A Thai security guard stands by a wall of sandbags in front of a factory at the Bangchan Industrial Estate area on the outskirts of the capitol city November 8, 2011 in Bangkok, Thailand. Over seven major industrial parks in Bangkok and, thousands of factories have been closed in the central Thai province of Ayutthaya and Nonthaburi with millions of tons of rice damaged. Across the country, the flooding which is now in its third month has affected 25 of Thailand's 64 provinces. Thailand is experiencing the worst flooding in over 50 years which has affected more than nine million people. Over 400 people have died in flood-related incidents since late July according to the Department of Disaster Prevention and Mitigation. (Photo by Paula Bronstein /Getty Images)

An Indian Air Force person walks carrying a Nepalese child, wounded in Saturday's earthquake, to a waiting ambulance as the mother rushes to join after they were evacuated from a remote area at the airport in Kathmandu, Nepal, Monday, April 27, 2015. The death toll from Nepal's earthquake is expected to rise depended largely on the condition of vulnerable mountain villages that rescue workers were still struggling to reach two days after the disaster. (Photo by Altaf Qadri/AP Photo)

A boy runs as heavy rains and high waves brought by typhoon Linfa, locally named Egay, crash along a breakwater along Manila Bay at a slum area in Baseco, Tondo in Manila July 6, 2015. All shipping was ordered to remain in harbor and some flights were canceled in the northern Philippines, while schools were closed in the capital, Manila, on Monday due to flooding and landslides from a tropical storm, disaster officials said. Storm warnings were issued in at least 14 areas of the main Philippine island of Luzon as tropical storm Linfa moved slowly across the north of the Southeast Asian archipelago. It was carrying maximum wind gusts of 100 km per hour (60 mph). (Photo by Romeo Ranoco/Reuters)

Filipino typhoon survivor children, who escaped after their village was attacked by allegedly armed men, wait for social workers in the super typhoon devastated city of Tacloban, Leyte province, Philippines, 13 November 2013. Aid workers and relief supplies were being poured into eastern provinces hit by Typhoon Haiyan, which aid agencies and officials estimated has left thousands dead and staggering destruction in its wake. The official death toll in the Philippines from one of the world’s strongest typhoons rose to 1,833, the national disaster relief agency said with many towns still unaccounted for. (Photo by Dennis M. Sabangan/EPA)

Trainees of the Tianjiao Special Guard/Security Consultant bodyguard training camp watch their instructor use a scarf to cover a student's head during a demonstration of close-quarter combat skills at a special course on flight safety inside a scale model of a passenger jet at a flight attendant training centre on the outskirts of Beijing, March 18, 2014. Inspired by the missing Malaysia Airlines Flight MH370, the company wanted to emphasize the importance of aviation safety by teaching their trainees emergency evacuation procedures and close-quarter combat skills to handle situations such as natural disasters and plane hijacks, according to the company. (Photo by Jason Lee/Reuters)

Reuters multi-award winning photographers are celebrated here in a three part retrospective on the 30th anniversary of the service's launch. They have captured dramatic images illustrating the human tragedy of natural disaster and war as well as the fallout of economic events across the continents, creating iconic images, recognised around the world. Here: an injured soccer fan is carried to safety by a friend after a wall collapsed during violence between fans before the European Cup final between Juventus and Liverpool at the Heysel stadium in Brussels, May 29, 1985. 39 people died, and a further 600 were injured. (Photo by Nick Didlick/Reuters)