Hard Numbers: The world economy hasn't looked this glum since when?

14: At least 14 police were killed and three injured when drug cartel gunmen ambushed a convoy in Michoacán state in western Mexico. The attack highlights the difficulties facing Mexican President Andrés Manuel López Obrador, whose first year at the helm may end with a record number of killings in his country.

200: Two-hundred Hong Kong protestors have been arrested since the weekend, when a spike in violence and vandalism swept the city: unrest has been rising since the government invoked colonial-era emergency powers several weeks ago. More than 2,300 demonstrators have been arrested since June.

⅓: At least one-third of all food produced for human consumption globally is wasted or lost every year, according to a United Nations report. While enough food is produced to feed everyone on the planet, the hunger rate is rising: 820 million people around the world are "chronically undernourished," the UN says.

0.8: Global economic growth this year will slow to its weakest level since the 2008 global financial crisis, the International Monetary Fund predicts in its latest forecast. The US-China trade war is a big reason why: the tariff spat between the world's two largest economies could knock 0.8% off global GDP by 2020.