The two neighbors are bound by a 1944 water-sharing treaty. But much of northern Mexico is in the grip of severe drought, and the country has fallen well behind in its water deliveries.
Road freight is still the backbone of Canada's economy, but trucking is changing, with digital freight-matching platforms reshaping how drivers find work and how goods get delivered.
From the BBC World Service: EU leaders are being briefed today on a new deal with the United States that halves the tariff President Donald Trump threatened to put on European goods.