Spring is just a few weeks away, and while most of us are excited about the warmer weather and longer days, it may also mean it’s time to stock up on allergy medicine. Allergies have become a major concern for many people in recent years. The number of people suffering from allergies is increasing at an alarming rate, and it has become a major public health issue. According to an article by Heartline, asthma increased by 28% within a ten-year span, and asthma in black children has doubled. While there are many factors that contribute to the rise in allergies, one of the most surprising causes is the decision made by urban planners to plant an abundance of male trees. Yep, you read that right. In 1949 the USDA published a yearbook on urban tree planting and strongly recommended planting male trees over female trees in cities because they didn't produce fruit and would be more aesthetically appealing to the eye. Unfortunately, they didn't realize the unintended consequences of...