![](https://www.nasa.gov/sites/default/files/thumbnails/image/7.11-400d1709madagascar.jpg)
As the International Space Station flew overhead, NASA astronaut Ricky Arnold captured this photograph of a changing landscape in the heart of Madagascar, observing drainage into the sea in the Betsiboka Estuary due to decimation of rainforests and coastal mangroves. via NASA http://www.nasa.gov/image-feature/the-heart-of-madagascar