Tree leaves may be powerful tools for monitoring air quality and planning biking routes and walking paths, suggests a new study. Leaves along bus routes were up to 10 times more magnetic than leaves on quieter streets, the study found.
Tree leaves may be powerful tools for monitoring air quality and planning biking routes and walking paths, suggests a new study. Leaves along bus routes were up to 10 times more magnetic than leaves on quieter streets, the study found.