This is probably a better response than my original. And certainly less insulting and more persuasive. It's from givemetrees.org Trees are not just for the far away mountains and jungles. They are very much needed right where we live. In the city. In our neighbourhood. Where we breathe, where we live. Trees are needed right where we live not just in far away forests. Trees are home to birds and squirrels, and they are home to people as well, providing a place for solitude and repose away from the pressures of the city. In fact, trees contribute substantially to property values. A treed neighbourhood can increase real estate values by over twenty percent. In town, people tend to shop longer along streets lined with shade trees. Apartments and office space are rented more quickly and for longer periods in green areas, and businesses are more apt to locate in a community with a healthy urban forest. But trees have tangible health benefits as well. How many of us suffer from some sort of respiratory problem? Trees act as an air filter, trapping dust particles and absorbing gaseous pollutants. Trees also reduce greenhouse gases through photosynthesis as they absorb carbon dioxide and produce oxygen. Trees moderate the effect of urban heat islands, where temperatures are often 3 to 4 degrees C greater than the surrounding area. Trees also shade us from the ultraviolet rays of the sun, which are becoming increasingly dangerous with the thinning of the ozone layer. Trees muffle noise by absorbing and diffusing sound waves. People seem to be less bothered by noise when the source is screened from view by trees or other vegetation. Trees can lower energy costs?by as much as 50 percent for air conditioning and 20 percent for heating?by shading our homes in summer and breaking the force of winter winds. These savings on energy consumption translate to burning less coal and oil, less carbon dioxide in the atmosphere and a reduction in environmental degradation. Trees even contribute to recovery from illness. Researchers have found that recuperating hospital patients placed in rooms with windows facing trees heal significantly faster and require far less pain-killing drugs than those in rooms without such a view. But urban trees are often left to take care of themselves in the harsh urban environment. Did you know that we continue to lose our established shade trees at a rate of four trees for every one tree planted? We can all help protect our urban forest. We can work together to ensure that our municipal governments have strong policies to conserve urban trees. We can also join community efforts to maintain our city's trees. The simple act of planting a tree in your own yard is a contribution to the survival of your urban forest.