11.   Far smaller gains could be achieved by the rich countries by planting trees and slowing deforestation, the report concluded.

12.   Hold off planting deciduous trees until their leaves have fallen off.

13.   If an air lock is not suitable, blunt the wind by planting trees or shrubs near the door or by erecting a decorative wall.

14.   Instead of spending stimulus money on new dams, he asks, why not put people to work planting trees instead?

15.   People hit by the kindness bug will do everything from planting trees to helping someone carry groceries to the car.

16.   Planting trees near the monarch sanctuaries may have benefits besides the obvious economic ones.

17.   Planting trees, a zoning code issue, and requiring the use of reflective materials on roofs and streets can lower temperatures.

18.   That is true of many other public-good endeavors, from planting trees to running charity balls.

19.   The American negotiators who undermined the Kyoto treaty talks were big on the idea of responding to the warming by planting trees.

20.   They took to planting trees as Earth Day neared.