Harrison Ford: United States must "step up to the plate," commit to world environmentalism

Actor Harrison Ford joins world leaders in Japan this week in the effort to combat the loss of animals, plants and their habitats.

This morning, Ford, vice chairman, Conservation International, tells John Roberts the goals of the UN Convention on Biological Diversity and how he got involved in the cause.

"We have to press for action now. We have to get unified commitment to the goals," Ford said. "We've got to get the United States to step up to the plate."