Nick Brandt has watched East Africa deteriorate.

The England native has photographed in Africa exclusively since 2001, capturing the disappearing natural landscape and animals of East Africa. “Going back to Africa over the years I became increasingly shocked by the speed of the devastation to the natural world,” Brandt told The Daily Beast. His work has always been a call to arms for environmental reform, but his new collection is his most powerful – and heart-wrenching – to date.