Tens of thousands of large dams across the globe are reaching the end of their expected lifespans. These deteriorating structures pose a serious threat to hundreds of millions of people living downstream.
“Amazonia”—the word alone can conjure up a lot of images, some accurate and some wildly not. In truth, it has many definitions, ranging from a specific drainage basin to a tropical ecological world. For most of my childhood, such kinds of tropical “jungles” were places of peril to be avoided. The very word “Amazon” conjured up Joseph Conrad’s images from Heart of Darkness ([1899] 2015), albeit that book was about the Congo in Africa.