The aerial photo taken on Sept. 4, 2009 shows the snowless top of Mount Kilimanjaro. Some scientists warned that the snow caps and glaciers on Mount Kilimanjaro would disappear altogether between 2015 and 2020.     非洲*峰乞力马扎罗峰的山顶曾经白雪皑皑，但是最近拍摄的航空照片显示，这银装素裹的景象也许再也不会出现了。科学家警告说，在2015-2021年之间，山顶的雪盖和冰川将彻底消失。