The U.S. has boosted its emergency food aid to Ethiopia by nearly $100 million to combat one of the worst droughts in decades, the U.S. Agency for International Development announced Sunday, according to AP. The aid is urgently needed to head off a humanitarian disaster brought on by the El Nino climate phenomenon that has affected seasonal rains, USAID administrator Gayle Smith said. The $97 million from USAID will include about 176,000 metric tons of food to be distributed to 4 million people. Since October 2014, the U.S. has given $532 million in humanitarian aid to Ethiopia.