Cartels have butterfly effect on Mexico’s monarchs

Effect of violence on tourism brings new threat to the insect’s survival
A soft afternoon sunlight cuts into a chilly forest of firs that provides winter haven for tens of millions of monarch butterflies. As their forebears have for time beyond memory, these monarchs have traveled as much as 3,000 miles, from across much of the United States and Canada, winging through Texas en route to this refuge in the central Mexico mountains. Read Article