The sahel has endured three droughts in the past seven years .
萨赫勒在过去的七年里已经遭受三次旱灾。
Elsewhere in the sahel , five french hostages are still being held .
但是另外在萨赫勒地区，还有五名法国人质仍被劫持。
The sahel has been degraded by human use , not natural desertification ; the natural process has been the reverse .
撒哈拉草地的退化是人为的，与自然荒漠化无关；这一自然已经开始逆转。
Others see it as resilient and hydra-headed , fomenting an " arc of instability " from the western sahel to the horn of africa , and still capable of radicalising and training many dangerous people .
