The era of dam building is coming to an end in much of the developed world. Dams are very expensive, environmentally harmful, and as the climate warms and droughts become more common, are not that reliable.
According to researchers with the National Geographic Society’s Big Cats Initiative, cheetahs are much closer to extinction than previously thought. The research team has released a study, which was recently published in the journal PeerJ, that updates the cheetah population numbers in southern Africa, the largest of its remaining habitat.
