Pedestrians are now twice as likely to be killed in the D.C. area as they were a decade ago, even as more local leaders ...

Trees deliver climate control coolness during summer days. A tree on city streets can reduce temperatures by as much as 25 ...

Seattle could meet its 30% tree canopy goal much quicker by converting a quarter of its 500,000 on-street parking spaces. The ...

Police are investigating after a car crashed and caught fire early Saturday morning, leaving two people dead and one ...