由于这些国家经常经历政治不稳定，以至于市场对这些国家的任何问题反应都如此迅速。首当其冲的便是当应对这些事件的时候，这些国家的咖啡供应能力都面临潜在降低的风险。在这样的时期，咖啡价格应声上涨。正如你所预料的，巴西和越南的问题对咖啡价格的影响最大，因为他们一起占到了全球咖啡产量的近50%。

　　Here is an instance. Prior to the 2014 FIFA World Cup (soccer) hosted by Brazil, there was a crisis. While much emphasis was not laid at that time with regard to coffee prices due to the fact that coffee prices had been up for most of the year, this event sure caused a bit of change in the coffee market. The fear was that the crisis could escalate and go all the way to threaten green coffee production in the country.

　　这里有一个实例。在巴西举办的2014届世界杯之前，出现了一场危机。当时大家的关注焦点都不在咖啡价格上面，然而事实上当年是咖啡价格上涨最多的一年，这一事件无疑引发了咖啡市场的一些变化。人们担心危机可能会升级最后威胁到该国的咖啡生产。

　　Climatic factors

　　气候因素

　　Coffee is highly sensitive to weather conditions. It just does not thrive in certain weather conditions. From what history has shown us, we can safely say rain has to fall just about the right time and sun has to shine at right time for coffee plants to grow properly. When these things do not happen as they should, farm output becomes low and hence, supplies become a problem. This situation usually sends prices high.

　　咖啡对气候条件非常敏感。它在某些天气条件下是不会生长的。从一些历史信息来看，我们甚至可以说为了咖啡的正常生长，无论雨水还是阳光，都得在正确的时候出现才行。如果不是这样，产量会很低，从而导致咖啡供应成为一个难题。这种情况最终引发价格上涨。