With its comparatively open and well-regulated immigration system, Canada remains a top destination for immigrants and refugees.

The threat of climate change and the rise of China have prompted renewed debate about the U.S. government’s role in shaping the economy.

Endemic to the African tropics, the Ebola virus has killed thousands in recent years, putting the World Health Organization and major donor countries in the limelight as they’ve grappled with how to …

The world is inching closer to eradicating polio, but armed conflicts and opposition to vaccines stand in the way of finally eliminating the disease.