Barry and unpopular have answered the question. They have no real environmental issues. One side of this stange alliance is associated an extreme right wing legal foundation which is opposed to all rail transit, and is using this issue to attack SMART. The other side are professional lefto-psuedo-environmentalist nimby lawyers who do this kind of thing for a living. As I have noted in the past, a kind of weird modern neo-luddite train hating version of the Hitler Stalin pact? The silent majority in Novato are getting kind of tired of their elected officials posturing and pandering to these extremists, not to mention the legal fees. After all, that majority are stuck in miserable traffic on the 101, getting jammed up behind big rigs, and paying $5 a gallon for gas, and don't have a problem with the railroad being one of the solutions. Maybe a recall campaign is the answer?