Table 2.

Problems with trees in cities, ranked by urban residents’ level of agreement with each statement.

Problems with treesRankzLevel of agreementy
Trees are a problem in cities because they cause allergies11.64 ± 0.04
Trees should not be used in business districts because they block store signs21.57 ± 0.03
Trees should not be planted because their roots crack sidewalks31.50 ± 0.03
Trees should be removed from cities because they can fall across power lines41.44 ± 0.03
Trees should not be used in cities because they make it difficult to detect criminal behavior51.43 ± 0.03
Trees should not be planted along streets because they drip sap or sticky residue on parked cars61.42 ± 0.03
Trees should not be planted in cities because they are ugly when they are not maintained71.32 ± 0.03
Trees should not be planted in cities because they cost the city too much81.30 ± 0.03
  • zRanking based on the order of the means.

  • yMean ± margin of error, based on a 95% confidence interval. Means are based on a scale from 1 (strongly disagree) to 4 (strongly agree).