Liberian workers dismantle shelters in an Ebola treatment center in the Paynes Ville neighborhood of Monrovia. Doctors Without Borders closed the center last month because it was no longer needed. Zoom Dosso/AFP/Getty Images hide caption

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In the 1950s, the World Bank funded the creation of the world's largest man-made dam, the Kariba Dam, which sits on the border of Zimbabwe and Zambia. The construction of such dams can have dire consequences for poor people living near a river, an investigation found. Jekesai Njikizana/AFP/Getty Images hide caption

itoggle caption Jekesai Njikizana/AFP/Getty Images

Iraqi Prime Minister Haider al-Abadi and President Obama meet at the White House on Tuesday. The prime minister is visiting to discuss the fight against the self-proclaimed Islamic State. Jacquelyn Martin/AP hide caption

itoggle caption Jacquelyn Martin/AP

World Bank President Jim Yong Kim wants the international community to step up its response to Ebola. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

A market area sat empty last month in Freetown, Sierra Leone, as the country's government enforced a three-day lockdown in an attempt to halt the spread of the Ebola virus. Michael Duff/AP hide caption

itoggle caption Michael Duff/AP

Spanish police block animal rights activists protesting Wednesday outside the apartment building of the Spanish nurse who contracted Ebola in the city of Alcorcon, outside Madrid. Susana Vera/Reuters/Landov hide caption

itoggle caption Susana Vera/Reuters/Landov