Not so long ago, cities were starved for trees

In 1919, 1,376 new Norway Maples were planted along streets in Brooklyn. Department of Parks of the Borough of Brooklyn, City of New York Many cities, in recent years, have initiated tree planting campaigns to…

Want better tips? Go for gold

Researchers studied whether subtly being exposed to different colors could change tipping behavior. Anutr Yossundara/Shutterstock.com Although tipping is generally thought to be a voluntary payment meant to express gratitude to a service worker, the history…

What’s behind our appetite for self-destruction?

There seems be an attractive quality to things that are ostensibly unhealthy or dangerous. Alisusha/Shutterstock.com Each new year, people vow to put an end to self-destructive habits like smoking, overeating or overspending. And how many…