Tree sits were more popular a decade or two ago than they are now.   Most of the deforestation is on corporate timberlands, which is barely mentioned by the fabled environmental groups of Eugene.   The initiative to prohibit aerial spraying over corporate clearcuts was spearheaded by mostly volunteer efforts in Cottage Grove and rural Lane County.  Both political parties support accelerated logging on the federal forests.  As for the speculators downtown, they get away with it because a lot of Eugene citizens are distracted by the entertainments (music, OCF, booze, cannabis and the rest) and don't notice who owns and runs the town.