NAIROBI, Kenya (AP) — Africa’s rare glaciers will disappear in the next two decades because of climate change, a new report warns amid sweeping forecasts of pain for the continent that contributes least to global warming but will suffer from it most. The report from the World Meteorological Organization and other agencies, released ahead of the U.N. climate conference in Scotland that starts Oct. 31, is a grim reminder that Africa’s 1.3 billion people remain “extremely vulnerable” as the continent warms more, and at a faster rate, than the global average. And yet Africa’s 54 countries are responsible for less than 4% of global greenhouse gas emissions.