Committed global action at every level of government, the economy, and society is needed to tackle such a complex, multifaceted challenge, and a growing awareness that time is running out should help…

China has so far been able to feed its 1.4 billion people, but climate change and a dependence on imports could pose challenges.

On the two-decade anniversary of the U.S. invasion, Iraq is weakly governed, leaving it prone to instability and meddling by neighbors—especially Iran.