A tree-shaded lawn is an oasis in the summertime simply because it provides cover from the sun's rays, but the benefits of trees extend beyond shade. Trees reduce greenhouse gases, filter air ...

Q. (My) birch tree, planted many years ago, has never really grown full. In the spring, it will get tiny green leaves but (it’s) still very airy and not full foliage. We’ve been told not to prune it.