>> you walk into an old-growth grove, it really is just a humbling experience. it puts life in perspective. >> reporter: $1.4 million is theded to build raised walkways that would allow for selfies without endangering the health of the trees. >> we're going to ask people to stay on trail, because that's our only defense right now. >> reporter: by staying on the trails, visitors can still see the forest and save the trees. john blackstone, cbs news, crescent city, california. >> duthiers: now to some other stories we're following in tonight's evening newsfeed. alexei navalny is calling for a boycott of russia's presidential election in march. he was formally barred today fom running. he has a past conviction for fraud, though many have called that an act of political retribution. in his christmas message, pope francis warned the winds of war are blowing around the world.