Scientists Track Roadless Areas Worldwide

There tends to be a controversy attached to any official designation of a wilderness area. 

The argument against wilderness set-asides is that they restrict economic activity.  But the wilderness proponents point out that roads crisscross the planet, rendering most roadless areas small. 

There is now a global map of roadless areas showing exactly where the untouched islands lie.  Dominick DellaSala of Ashland's Geos Institute is one of the creators of the map; he visits with details.