Mexico’s Pacific port city of Manzanillo is on the front line of the fight against fentanyl — a drug blamed for tens of thousands of deaths in the United States.Since last year, agents at the port have been tasked with finding and seizing precursor chemicals…

The stated aim is to reduce by more than half the carbon emitted by London 2012 and Rio 2016 which emitted 3.4 million and 3.6 million tonnes of CO2, respectively to under 1.5 million tonnes of CO2. …