The United Nations Children's Fund says at least 242 million children in 85 countries had their schooling interrupted last year because of heatwaves, cyclones, flooding and other extreme weather.

The Chiefs are slight favorites to beat the Bills on Sunday and get a shot at winning an unprecedented third consecutive Super Bowl.

Outgoing Canadian Prime Minister Justin Trudeau says prices for Americans will go up if President Donald Trump follows through with his vow to apply sweeping tariffs on Canadian products.