Steven Weissman quoted in E&ENews PM, December 18, 2014
“Basically, they’re saying you could level over 160 acres’ worth of trees before you reach any level of significance, or burn 25 million pounds of coal,” he said. “It’s all very interesting because there’s no particular number that’s magical here; this is just an effort to set a benchmark [to prevent] too much attention on projects that would have smaller effects.”