Mongolia has warmed roughly four degrees Fahrenheit—more than almost anywhere else on Earth. The resulting erratic weather threatens the nomadic, pastoral lifestyle of half of Mongolia's population.
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 The Incas believed that the god Viracocha rose from the waters of Lake Titicaca and created mankind. Now, mankind's trash is endangering the waters of the sacred lake. |
 Water and sanitation are at the center of a heated political debate in Liberia. Why are so many still going without? |
 Liberian journalist Tecee Boley and NewsHour special correspondent Steve Sapienza on why the after-effects of war and a lack of accountability mean poor access to clean water and sanitation. |
 A vexing problem for Indian health authorities: the most widely used polio vaccine now causes more disease than the virus it is supposed to fight. |
 Pulitzer Center grantee Helen Branswell reports on the tricky transition to a safer polio vaccine in the final stages of eradicating the disease. |
 Access to water for the Ivory Coast's rural areas could be an important factor in bringing together a country in conflict. |
 Climate change may affect not only the ice cap on Antisana, but also the páramo, the spongy grassland that surrounds it—and provides Quito, Ecuador's capital, with one-third of its water. |
 Nigeria's president claims that by 2015 three fourths of his people will have access to safe drinking water. New UN data suggest that he's 25 years off. |
 The booming urban populations of Bolivia and Peru are threatening Lake Titicaca, as well as the indigenous populations that depend on it. |
 Every day, millions of people across West Africa struggle to get access to safe drinking water. In many cases, the greatest obstacle they face is lack of government accountability. |
 The Greater Makurdi Water Works has finally been commissioned after ten years. But where is the water? |