UNITED NATIONS—Sand and dust storms affect about 330 million people in over 150 countries and are taking an increasing toll on health, economies and the environment, the UN World Meteorological ...

There are nearly 20,000 butterfly species divided into six families. They are spread across every continent except for ...

Colonial policies had deliberately administered the Arab-Muslim North separately from the African, Christian, and Animist South, fostering deep-seated mistrust and inequality that post-independence ...