American Forests, a Washington-based advocacy group, has done studies of other United States cities, calculating the values of urban trees.
"It doesn't look like there's any way we can stop it," said John Bergan, an urban planner from Pawling, N.Y., who has done studies on noise pollution.
He has done studies showing that workers who remain sedentary throughout the day are impairing their health.
Michael Masson, a psychologist at the University of Victoria, has done studies comparing graduates of a speed-reading course with "naïve" control groups.
In addition, he has done studies showing that the kind of deep breathing techniques taught in yoga classes can reduce the rate of hot flashes by about half.
The topic is intricate and comprehensive, and any conclusion should only follow a project that has done studies into a representative number of people.
She has done studies on landscape character, including cultural and natural attributes of landscapes and their evaluation in local and regional (national) context.
Kolian's team has done studies of their own to alarming results.
