1. Don’t throw away your Christmas tree.

2. The ten longest bike/ped tunnels in the United States, with a link to the international top ten.

3. Why data-obsessed jocks need a data detox. In my late November Seattle marathon, the first time I took a look at my watch, it read 21.6 miles. Not bad, eh.

4. Can kindness be taught?

5. Neighbors fed up with traffic take matters into their own hands.