Workers of State Grid Binzhou Power Supply Co measure temperatures inside a greenhouse at Guo Ning Winter Jujube Demonstration Park in Zhanhua district, Binzhou, Shandong province. JIA SHUYU/FOR ...

U.S. tariffs on Canadian goods pose a big risk for the greenhouse sector, which relies heavily on exports south of the border and would suffer if importers buy less because of the trade war.

Tickets to visit the famous Royal Greenhouses of Laeken in April and May will go on sale on Thursday. Make sure to get them before they're gone: the coveted tickets sold out in just three days last ...