Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: Drought and Hunger Add to Darfur #39;s Woes Sudans Darfur region, already engulfed in a conflict that has forced 1.8 million people to flee their homes, now faces a new threat from drought which is drying up wells and could lead to widespread hunger next year, the top US aid official says.

World