… once a week during normal weather conditions, and twice a week during drought, for the first two years after planting.” It appeared to Dr. Nicholas that written … and right in our back yard,” said Dr. Nicholas, director of the school’s Center for Climate Change, Climate Justice, and Health , a first-of-its-kind nurse-led … when it comes to walkability, clean air, and mental health. Sometimes they are the only greenery in a neighborhood.” Other student volunteers are Sarah Blushi, SLP ’20; …