As cities grow, their populations become more diverse — on a species level. As we move into the future, many wild animals will be living in urban areas alongside humans and their pets. Now, urban planners are figuring out new ways to make urban species diversity possible — without killing anyone.
The best way to cope with traffic is actually to make multi-lane highways smaller, not bigger. Several long-term studies have shown that "road diets" that shrink 4-line highways to 3-lane highways significantly decrease traffic jams and accidents. Atlantic's CityLab has the story.