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| | The Effectiveness of Parks -- Vanclay et al. 293 (5532): 1007 -- Science |
 | | Within park areas, the categories for percent cleared were 0%, 1 to 5%, 6 to 10%, 11 to 20%, 21 to 40%, and 41% or more. |
 | | For areas surrounding the parks, the categories were 0 to 10%, 11 to 30%, 31 to 50%, 51 to 70%, 71to 90%, and 91 to 100%. |
 | | For example, if clearing had an 8% value both inside and outside of a given park, it would fall into category 3 for the values inside the park but in category 1 for values outside the park [see note (2)]. |
| www.sciencemag.org /cgi/content/full/293/5532/1007a (2330 words) |
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