Experts had long said that floods posed a significant danger to two dams meant to protect nearly 90,000 people in the northeast of Libya. They repeatedly called for immediate maintenance to the two structures, located just uphill from the coastal city of Derna. But successive governments in the chaos-stricken North African nation did not react.

She has pedaled thousands of miles from Sweden to Egypt's Red Sea resort of Sharm el-Sheikh to deliver a simple message: Stop climate change.

The Russian tanks and missiles besieging Ukraine also are threatening the food supply and livelihoods of people in Europe, Africa and Asia who rely on the vast, fertile farmlands of the Black Sea region — known as the “breadbasket of the world.”