At least 100 elephants have died in Zimbabwe's Hwange National Park due to drought caused by climate change and El Nino, a natural weather phenomenon that warms parts of the Pacific. Conservation groups are urging governments to take action to protect vulnerable species and ecosystems, as El Nino is making an already dire situation worse. Tinashe Farawo, spokesman for the Zimbabwe National Parks and Wildlife Management Authority, said "We must act now to protect our wildlife and ecosystems."