When you look up, what do you see? If you’re in Baltimore and many other U.S. cities, what you see are trees. When viewed from above, the tree canopy, as it is known, covers more than 27% of Baltimore. And, if today’s urban arborists have their way, that figure will be significantly higher 20 years from now. Today, a conversation about urban forests. What purpose do they serve in our daily lives? Who planted them, and why? What lessons did we learn from the mid-20th century disaster known as

Today, in the November installment of our monthly series, Living Questions, a look at Native American spiritual practice and the sanctity of tribal land. We’ll examine how tribal traditions have factored into the months-long conflict between the Standing Rock Sioux tribe of North Dakota and Energy Transfer Partners , a Dallas-based company trying to complete the 1200-mile Dakota Access Pipeline at a Missouri river crossing near the tribe’s reservation. The standoff at Standing Rock has become an