After the boom-bust-boom of the fifties and sixties, the borough went into a third and more severe decline again in the mid-1970s along with much of the Rust Belt so that population was just 2,804 at the 2000 census. Now in the 2011 Brownsville still has a handful of buildings condemened or just borded up.
Threats to Biodiversity. The primary threats to the savanna biome are humans (for example, poachers are killing elephants for their ivory tusks and hunting animals to the brink of extinction) and global climate change.
Though most publicity surrounding endangered savanna species references animals, some plants are endangered as well, including the baobab tree, a fruit-bearing tree long valued for its many functions. Baobab trees grow to more than 80 feet tall and have thick trunks from 30 to 90 feet in diameter.