Rutgers University

Sales of raw milk appear to be on the rise, despite years of warnings about the health risks of drinking the unpasteurized products — and an outbreak of bird flu in dairy cows.

Starting in the 2011-2012 growing season, a powdery orange fungus called coffee leaf rust spread like wildfire throughout Latin America and Central America, damaging crops on 70% of farms and causing more than $3.2 billion in damage.