Refugees and migrants move a garbage bin as they demonstrate outside Moria camp, following the stabbing death of an 20-year-old man from Yemen in the Greek island of Lesbos, Friday, January 17, 2020. Authorities arrested a 27-year-old Afghan migrant in connection with the incident. Overcrowding at Moria has steadily worsened over the past year as the number of arrivals of migrants and refugees using clandestine routes from Turkey to the Greek islands remains high – and totaled nearly 60,000 in 2019. (Photo by Aggelos Barai/AP Photo)





Greek Riot Police clash with an asylum seeker as refugees and migrants protest outside Moria camp, following the stabbing death of an 20-year-old man from Yemen in the Greek island of Lesbos, Friday, January 17, 2020. (Photo by Aggelos Barai/AP Photo)





A police stops a motorcyclist to search him at a security checkpoint in the El Milagro area of the Mixco municipality on the outskirts of Guatemala City, Friday, January 17, 2020. Guatemala’s new president announced a state of alert for two municipalities with high crime rates to combat gang activity Friday, a measure that allows the deployment of military troops. (Photo by Oliver de Ros/AP Photo)





Firefighters take part in a demonstration to protest against the attacks against them during interventions, on January 17, 2020 in Strasbourg, eastern France. During the New Year's Eve night in Strasbourg, two firefighters were notably injured following a projectile thrown onto the window of their truck. Last weekend, three firefighters were victims of a stabbing by a person they came to rescue near Strasbourg. (Photo by Patrick Hertzog/AFP Photo)





Numerous tractors of farmers from the Republic arrive on the Road of 17 June not far from the Victory Column in Berlin, Germany on January 17, 2020. With this protest action the farmers demand a rethinking of the government's agricultural policy. (Photo by Odd Andersen/AFP Photo)





A man stands on a tractor as thousands of German farmers demonstrate along the 17 Juni street in Berlin, Germany, 17 January 2020. Some 5,000 farmers and their tractors gathered in the German capital to protest a series of measures taken against the agricultural community, from climate laws to the recent agrarian package. (Photo by Filip Singer/EPA/EFE)





Demonstrators take part in a global protest campaigning against inequality ahead of the Davos World Economic Forum, in Nairobi, Kenya, January 17, 2020. (Photo by Baz Ratner/Reuters)





Swedish climate activist Greta Thunberg (C) gives a speech during an environmental Fridays for Future climate strike demonstration to protest a lack of climate awareness, in Lausanne, Switzerland, 17 January 2020. (Photo by Gabriel Monnet/EPA/EFE)





Greta Thunberg gives speech during 1st Anniversary Climate Strike in Lausanne on January 17, 2020 in Lausanne, Switzerland. (Photo by RvS.Media/Basile Barbey/Getty Images)





Protesters dressed as koalas demonstrate during a climate strike against governmental inaction towards climate breakdown and environmental pollution in Lausanne, on January 17, 2020. Swedish climate campaigner Greta Thunberg joined several thousand protesters in the streets of the Swiss city of Lausanne, days before the start of the Davos summit of the world's political and business elites. (Photo by Stefan Wermuth/AFP Photo)





Iraqi demonstrators carry smoke cartridges, which release coloured smoke, during the first colour festival outside the Kufa University in the holy shrine city of Najaf on January 15, 2020. (Photo by Haidar Hamdani/AFP Photo)





In this photo taken Thursday, January 16, 2020, a Samburu boy uses a wooden stick to try to swat a swarm of desert locusts filling the air, as he herds his camel near the village of Sissia, in Samburu county, Kenya. The most serious outbreak of desert locusts in 25 years is spreading across East Africa and posing an unprecedented threat to food security in some of the world's most vulnerable countries, authorities say, with unusual climate conditions partly to blame. (Photo by Patrick Ngugi/AP Photo)