科学家的一项调查发现，极端天气事件、粮食不安全以及淡水短缺可能会导致全球崩溃。
A survey of scientists found that extreme weather events, food insecurity, and freshwater shortages might create global collapse.
国家(尤其是最不发达和粮食不安全国家)怎样才能利用这些国际机制？
How can countries (particularly the least developed and food insecure countries) tap to these international mechanism?
霍尔和其他专家首先询问是否是粮食不安全的一个症状或造成贫困。
Hall and other experts begin by asking if food insecurity is a symptom or a cause of poverty.
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